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METERS & SOLUTIONS

METERS & SOLUTIONS 335–350

Bluelab 336–338Hanna Instruments 338–340Hanna Instruments 338–340HM Digital 341Luster Leaf 342Milwaukee Instruments 343–345Myron L Company 345Nutradip 345Oakton 346Autopilot 347Active Aqua 347–348General Hydroponics 347Bluelab 348Earth Juice 348Microbe Life Hydroponics 348Botanicare 348

For the latest product and pricing updates for this category,

scan the QR code or go to Hydrofarm.com.

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METERS & SOLUTIONS

BLUELAB pH CONTROLLERHands-free monitoring and dosing of solution pH levels. Features automatic control and monitoring of system pH with reservoirs up to 200 US gal / 760L. Large, easy to read displays and plant-safe green back lit LCD with adjustable brightness. Easy to navigate menu to program and adjust settings. Simple push button pH calibration with on screen guide. Flashing high / low alarm with control lockouts. Dosing lockouts to protect from over-dosing. Auto resume dosing on restart after power loss. Water resistant, wall mount design. 13 foot (4 meter) acid/alkali resistant dosing tube supplied. Use with undiluted Bluelab pH Up or Down. International power supply. Replaceable double junction pH probe. Separate Bluelab Temperature Probe (for pH ATC). Replaceable peristaltic pump and tubes.

ITEM CODE DESCRIPTION SRPBLU8001 Bluelab Guardian Monitor Connect $450.00

ITEM CODE DESCRIPTION SRPBLU8004 Bluelab pH Controller $569.00

BLUELAB GUARDIAN MONITOR CONNECTStay connected to your crop 24/7. Monitor, data log, and remotely view pH, conductivity and temperature readings. The Guardian Monitor Connect is not only a constant indicator of the desired levels of pH, conductivity and temperature of your nutrient solution, it also data logs these critical parameters to your computer for you. You can access the data via the cloud from a remote mobile device or computer to check these critical parameters are hitting the mark for crop success. Just one Bluelab Connect Stick is required to receive wireless data from one or more Guardian Monitor Connects. For remote or cloud access, the computer you’re already data logging to will need permanent internet access.• Data logging capability (ONE Bluelab Connect Stick is required, sold

separately – BLU8002)

• Free Bluelab Connect Software available online

• View data and current status remotely via Google Docs

• Plant-safe green LEDs

• Large easy to read displays

• No calibration required for conductivity and temperature

• Simple push button pH calibration

• Selectable values for conductivity and temperature

• Flashing high and low alarms

• Greater tolerance to RF / electronic interference provided

• Water resistant design

• International power supply

• Replaceable double junction pH probe

• Adjustable display brightness

• Non-volatile memory

ITEM CODE DESCRIPTION SRPBLU8002 Bluelab Connect Stick $150.00

BLUELAB CONNECT STICKData log and view nutrient measurements from your crop wirelessly. The Connect Stick receives wireless data from Bluelab Connect Monitors or Controllers, logging the data to the cloud. One Connect Stick will receive data from multiple Bluelab Connect Devices. Simply place the Connect Stick into a USB port on your computer, download and install the free Connect Software to begin monitoring crop performance wirelessly. View readings from your PC or mobile device so you’ll know when to adjust your nutrient solution to the optimal range. Add other Bluelab Connect Devices to your Connect Software at the click of a button.

ITEM CODE DESCRIPTION SRPBLU8003 Bluelab Connect Range Extender $164.00

BLUELAB CONNECT RANGE EXTENDERBoost the wireless range or signal strength between Bluelab Connect products. The Bluelab Connect Range Extender is required if you need to boost the signal range for wireless monitoring of your crop. Simply plug into a power supply to use when there is a longer distance to cover between Bluelab Connect devices and the Bluelab Connect Stick. For extra-long distances, multiple Connect Range Extenders can be used. International power supply (may differ from image shown).

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ITEM CODE DESCRIPTION SRPBLU27100 Bluelab Guardian Monitor $364.00

BLUELAB GUARDIAN MONITORMeasures all 3 critical parameters for successful growth: pH, conductivity AND temperature. The Bluelab Guardian Monitor is a constant indicator of the desired levels of EC/ppm 700/TDS/CF, pH and temperature, enabling the grower to optimize these parameters through each growing phase. Monitor your crops 24 hours a day, with flashing high and low alarms allowing you to make adjustments to your solution quickly.

ITEM CODE DESCRIPTION SRPBLU2216 Bluelab Soil pH Pen $185.00

BLUELAB SOIL pH PEN Provides a pH and temperature reading of soils and media, so you know the right nutrients will be made available to your plants. It will even measure solutions. Now, isn’t that handy? Features a sturdy and removable dibber to create a hole in soils and media, pH probe to measure pH or temperature of soils, media, and solutions, and easy-to-use buttons with selectable units for °C and °F. Has a backlit LCD display, successful pH calibration indicator, hold and auto off functions, and a low battery warning.

ITEM CODE DESCRIPTION SRPBLU2300E Bluelab Combo Meter $308.00BLU24102 Bluelab pH Probe 70.00BLU7000 Bluelab Carry Case $25.00

BLUELAB COMBO METERThe Bluelab Combo Meter is a conductivity, pH and temperature meter all-in-one. It comes with a pH probe and conductivity and temperature probe, that when placed into the solution, displays the selected reading on screen. Portable and does not require a power supply. Conductivity and temperature do not need to be calibrated. Select display options for °C or °F and EC, CF or ppm.

BLU7000

BLU2300E

Bluelab planograms at Hydrofarm.com

ITEM CODE DESCRIPTION SRPBLU2000E EC Truncheon $140.00BLU2100E Commercial Truncheon 140.00

NEW FEATURES!

BLUELAB TRUNCHEONSThe world’s favorite conductivity meter just got even better! Bluelab’s EC and Commercial Truncheons now feature easier to read scales, external thermistor for faster readings, new blue daylight readable LEDs, and easier cleaning – just twist to remove shroud. Tough and reliable.BLUELAB TRUNCHEON NUTRIENT METER Simply brilliant, brilliantly simple! With EC, CF, ppm 700 and ppm 500 scales to measure the strength of your nutrient solution.BLUELAB COMMERCIAL TRUNCHEON When range, durability and accuracy counts! With a conductivity range right up to 6.0 EC (60 CF, 3000 ppm 500 and 4200 ppm 700), it will never leave you short.

ITEM CODE DESCRIPTION SRPBLU2320E Bluelab pH Meter $210.00BLU2330E Bluelab Soil pH Meter $240.00BLU24115 Bluelab Soil pH Probe 110.00

BLUELAB pH METERWhen measuring the pH of a solution is important, reach for the Bluelab pH Meter. Simply place the pH probe into the solution and the reading is displayed on the screen. This lightweight, portable meter runs on 2 AAA batteries – no power supply needed to operate.

• Replaceable double junction pH probe

• Simple push button pH calibration

• Large, easy to read display – 10 mm (.4")

• Auto off function

• Low battery indicator

BLU2320E

ITEM CODE DESCRIPTION SRPBLU2210 Bluelab pH Pen $112.50

BLUELAB pH PENThe Bluelab pH Pen provides a compact, quick and handy way to manage the success of your crops to ensure maximum uptake of nutrients. Teamed with Bluelab’s EC Pen or ppm Pen, you have a handy, convenient and accurate system for ensuring optimum plant growth and health. The Bluelab pen range has been specially developed as an affordable and effective option for hobby or small scale growers.

• Measures pH and temperature

• Selectable units for °C and °F

• Backlit LCD display

• Double junction probe (not replaceable)

• Successful calibration indicator

• Hold reading function

• Low battery indicator

• Fully waterproof

• Auto off function

• Automatic temperature compensation

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BLUELAB PROBE CARE KITS & SOLUTIONSProbe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller. The probe surface is where the instrument takes the reading of the solution or soil/media. If the probe face is dirty or contaminated, then the reading will be inaccurate. Accurate readings simplify crop management and provide improved growth. Probe Care Kits contain handy tips and all the tools you need to prolong the life of your probe. You can easily re-stock your kits with Bluelab Solutions. Bluelab Solutions are manufactured specifically for Bluelab products, they are NIST certified and made to a traceable standard to ensure your Bluelab products last longer and maintain accuracy.

GRO’CHEK COMBO TEMP TESTERThe HI98130 and HI98129 Combo waterproof tester offers high accuracy pH, EC/TDS and temperature measurements in a single tester. The waterproof Combo (it even floats) has a large easy-to-read, dual-level LCD and automatic shut-off. pH and EC/TDS readings are automatically compensated for the effects of temperature (ATC). This tester has a replaceable pH electrode with an extendable cloth junction, and an EC/TDS graphite electrode that resists contamination by salts and other substances.

ITEM CODE DESCRIPTION SRP

HI98129 Gro’Chek pH/EC/TDS/C /ppm Tester $194.95HI98130 Gro’Chek Hanna pH/EC/TDS/C /ppt Pocket Tester 194.95HI73127 Replacement pH Electrode for

HI98127/28/29/30$62.95

ITEM CODE DESCRIPTION SRPHI981401N Gro’Chek pH Indicator w/electrode $121.95HI1286 pH Electrode w/2 m 6.6' Cable 66.95

GRO’CHEK COMBO TEMP TESTERThis meter is waterproof and comes in rugged, protective housing with large, easy to read LCD.

GRO’CHEK pH/EC/TDS METERSThis versatile, water resistant, multiparameter portable instrument is specifically designed for agricultural applications such as hydroponics, greenhouses, farming and nurseries. Features a large LCD that clearly displays the parameter being measured as well as calibration instructions. Calibration is fast and easy with knobs located on the front panel of the instrument. Available with or without cal-check feature.

ITEM CODE DESCRIPTION SRPHI9813-5N Gro’Chek pH/EC/TDS Meter $283.95HI9813-6N Gro’Chek pH/EC/TDS Meter w/cal-check 283.95HI1285-6 Gro’Chek Replacement Probe for H19813-6 131.95HI12855 Gro’Chek Replacement Probe for HI9813-5N 128.95

ITEM CODE DESCRIPTION SRPBLU7002 Bluelab Probe Care Kit, Conductivity $11.90BLU7003 Bluelab Probe Care Kit, pH 16.95BLU7001 Bluelab Probe Care Kit, & Conductivity 22.95BLU420 pH 4.0 Cal Solution Sachet 20 ml $44.95BLU4250 pH 4.0 Calibration Solution 250 ml 48.95BLU4500 pH 4.0 Calibration Solution 500 ml 65.95BLU720 pH 7.0 Cal Solution Sachet 20 ml $44.95BLU7250 pH 7.0 Calibration Solution 250 ml 48.95BLU7500 pH 7.0 Calibration Solution 500 ml 65.95BLU27725 2.77 EC Conductivity Solution 250 ml $48.95BLU27750 2.77 EC Conductivity Solution 500 ml 65.95

BLUELAB PH PROBE KCI STORAGE SOLUTIONBluelab pH Probe KCI Storage Solution is designed to increase response time and maximize the life of Bluelab pH pens and pH probes. For best results, use the KCI solution to store the pH pen/probe after use and hydrate monthly. Instructions are on the label of the bottle.

ITEM CODE DESCRIPTION SRPBLU1008 Bluelab pH Probe KCl Storage Solution $11.95

ITEM CODE DESCRIPTION SRPBLU2221 Bluelab ppm Pen $94.00

BLUELAB PPM PENAn affordable and effective option for hobby or small scale growers, the Bluelab ppm Pen measures how much food the plant has available. Team it up with Bluelab's pH Pen for a convenient and accurate system for ensuring optimum plant growth and health.

• Measures conductivity and temperature

• Selectable units for conductivity and temperature

• Backlit LCD display

• Calibration optional

• Successful calibration indicator

• Hold reading function

• Low battery indicator

• Fully waterproof

• Auto off function

• Automatic temperature compensation

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METERS & SOLUTIONS

ITEM CODE DESCRIPTION SRPHI981404N Gro’Chek pH Tester $211.95

GRO’CHEK pH & TDS COMBOAmazing continuous reading meter from Hanna Instruments displays pH and TDS simultaneously. It takes up very little space and has adjustable set points.

ITEM CODE DESCRIPTION SRPHI983301N Gro’Chek TDS Monitor w/H117632 $114.95HI983302N Gro’Chek EC Monitor w/H117632 114.95

GRO’CHEK EC & TDS METERSContinuous reading meters from Hanna Instruments display pH & EC. Protective housing made to last with easy to read large LCD.

ITEM CODE DESCRIPTION SRPHI98121 Combo pH/ORP/Temperature Tester $187.95

COMBO pH/ORP/ TEMPERATURE TESTERThis waterproof meter measures pH, ORP and temperature – and it floats! Electrode replacement with the stainless steel round connector means there are no pins to bend or break during replacement. Features Hanna’s exclusive cartridge pH and ORP electrode, extendable cloth pH junction, automatic temperature compensation, automatic calibration, battery % Level at startup and stability indicator, and Hold function.

pH TESTER FOR HYDROPONICSEconomical pH tester for all hydroponic growers. The HI99104H is easy to calibrate (no tools required!), uses a replaceable pH electrode and works for 1000 hours before having to change the batteries. Includes HI1270 pH electrode, batteries, and instructions.

ITEM CODE DESCRIPTION SRPHI99104H pH Tester for Hydroponics $52.95

Checker pH Tester with Replaceable ElectrodeHanna’s pH Checker supplies users with fast and accurate readings from 0 to 14 pH with a resolution of 0.01 pH. This compact tester features an easy to read LCD and simple to perform two point calibration.

Includes:• High accuracy with 0.01 pH resolution• Two point fast and accurate calibration• Compatible with virtually any electrode that

shares the same connector• 3,000 hours of battery life• Small diameter probe fits easily into a test tube• Includes pH electrode, batteries, and

instructions

ITEM CODE DESCRIPTION SRPHI98103 Hanna Checker pH1 Tester (tester only) $40.95

ITEM CODE DESCRIPTION SRPHI98311 DiST 5 EC/TDS Meter $130.95

GRO’CHEK DIST®5 WATERPROOF 3-WAY TEMP TESTER The DiST®5 displays TDS readings in EC & PPM, includes features such as a replaceable graphite electrode designed to resist contamination from salt (fertilizer) buildup, it features an adjustable TDS ratio, displays temperature in °C or °F, includes automatic temperature compensation (ATC) with adjustable coefficient ß, battery level indicator, stability indicator, automatic shut-off and automatic calibration all in a floating, waterproof casing.

ITEM CODE DESCRIPTION SRPHI991404 Gro’Chek pH/EC/TDS Temp Cont. Combo $246.95

GRO’CHEK pH/EC/TDS 3-WAY METERA 3-in-1 continuous reading meter from Hanna Instruments. Completely waterproof with a backlit dual level LCD, Auto Cal and pH Temperature Comp.

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More great products online at Hydrofarm.com

ITEM CODE DESCRIPTION SRPHI98127 Hanna pHEP 4 Meter $113.95HI73127 Replacement pH Electrode for

HI98127/28/29/3062.95

GRO’CHEK pHEP®4 WATERPROOF pH TEMPERATURE TESTER The pHep® 4 includes features such as a replaceable pH electrode with a renewable cloth junction, automatic calibration, dual-level LCD, battery level indicator, instability indicator, automatic shut-off, in a floating waterproof casing.

pHEP TESTERThe original pHep® tester features a renewable cloth junction, easy 2 point manual calibration, 700 hour battery life. Its economical and simple to use.

ITEM CODE DESCRIPTION SRPHI98107 pHEP Tester $66.95

HANNA INSTRUMENTS SOLUTIONSHanna Instruments solutions are available in bottles, single-use sachets, and convenient starter kits.

ITEM CODE DESCRIPTION SIZE SRPHIPHTDSKIT Solution Starter Kit (pH, TDS

& Cleaning)$20.95

Solution Starter Kit (pH & Cleaning)

20.95

HI7004L pH4 Calibration Solution 16 oz 18.95HI7007L pH7 Calibration Solution 16 oz 18.95HI70442M 1500 ppm Solution 230 ml 13.95HI7031M 1413 mS/cm Solution 230 ml 14.95HI70300L Storage Solution 16 oz 500 ml 18.95HI7061L Electrode Cleaner 16 oz 500 ml 19.95HI70442P 1500 ppm @25C Calibration

Solution 20ml20 ml 31.95

HI70004P pH 4.01 Calibration Sol. 25/pk 20 ml 31.95HI70007P pH 701 Calibration Sol. 25/pk 20 ml 31.95HI70030P 12880 S/cm Calib Solution,

25x20ml20 ml 31.95

HI70031P 1413 S/cm (EC) Calib Solution, 25x20ml 25/pk

20 ml 31.95

HI70032P 1382 ppm @25C Calibration Solution 20ml

20 ml 31.95

PRIMO TDS TESTERFast and dependable, the Primo TDS tester features an easy-to-read LCD and operates by a single button at the top of the meter. Press it once and the meter is powered and ready for use. Press and hold the button for a few seconds and Primo automatically enters calibration mode. Simply open a sachet of the calibration solution, dip the probe and within seconds the meter recognizes the calibration solution and calibrates itself! Features automatic temperature compensation, single-button operation, and auto-off after 5 minutes of inactivity for maximum battery life.

ITEM CODE DESCRIPTION SRPHIPRIMO Primo TDS Tester $40.95

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TDS-3 HANDHELD TDS METERIdeal for commercial use, the TDS-3 includes a carrying case with belt clip. It is highly efficient and accurate due to its advanced microprocessor technology. It features a measurement range of 0–9990 ppm. From 0–999 ppm, the resolution is in increments of 1 ppm. From 1000 to 9990 ppm, the resolution is in increments of 10 ppm, indicated by a blinking image.

ITEM CODE DESCRIPTION SRPHMDTDS3 TDS-3 Tester Pen $37.00

AQUAPRO TDS/TEMP METER Measures total dissolved solids (TDS) and temperature. Features Automatic Temperature Compensation (ATC) in a water-resistant housing. It measures from 0-5000 ppm, has digital calibration (push button), auto-off function, data-hold function and low-battery indicator. Large, easy-to-read display with simultaneous temperature reading. The AquaPro is calibrated with a 342 ppm NaCl solution. Can be recalibrated with digital calibration using the push buttons, rather than a screwdriver. Includes cap and batteries.

ITEM CODE DESCRIPTION SRPHMDAP1 Aqua TDS/Temperature Meter $42.95

COM-100 WATERPROOF COMBO METERMeasures electrical conductivity (EC), total dissolved solids (TDS) and temperature. Three different calibration options – KCl (.5), 442TM (.7), NaCl (.5) – each with its own non-linear conversion factor, and automatic temperature compensation (ATC) using three temperature coefficients. Four scales: μS, mS, ppm, ppt. Measurement range: 0–9990 μS; 0–8560 ppm; 0–9.99 mS; 0–8.56 ppt (auto-ranging).

ITEM CODE DESCRIPTION SRPHMDCOM100 EC/TDS Temperature Meter $76.95HMDSPC1 Replacement Platinum Sensor 36.95

Replacement sensors at Hydrofarm.com

ITEM CODE DESCRIPTION SRPHMOPSTOR pH Storage Solution $6.95HMDC1000 1000 ppm Calibration Solution $6.50

CALIBRATION SOLUTIONNaCl calibration solution 1000 ppm comes in lightweight HDPE plastic bottles. Sealed with a coated foam liner.

pH STORAGE SOLUTIONFor use with HM Digital’s PH-200 and PH-80. Always make sure your sensor is kept in an electrode storage solution.

COM-80 WATER RESISTANT EC/TDS METERMeasures EC (μS, mS), TDS (ppm, ppt) and temperature in ºC/ºF. Features a durable, water-resistant housing, automatic temperature compensation, hold button, auto shut-off, digital (push button) calibration, low battery indicator, and a large, easy to read LCD display. Measurement Range: 0–9990 μS; 0–5000 ppm; 0–9.9 mS; 0–5.0 ppt with a temperature range of 0–80 °C; 32–176 °F. Uses one 3 V button cell battery (included).

ITEM CODE DESCRIPTION SRPHMDCOM80 EC/TDS Temp Water Resistant EC/TDS

Meter$47.95

ITEM CODE DESCRIPTION SRPHMDPHM80 pH Temperature Meter $62.95

PH-80 WATER RESISTANT pH/TEMP METERResolution: pH 0.1 pH, 0.00–14.0 pH. Accurate to 0.1 pH. Hold button and auto shut-off. Automatic calibration: Auto-ranging to 4, 7 or 10 pH. Very reliable and long lasting. Low battery indicator. Clear cap to notice moisture (or lack of ) on probe. Glass encased reference electrode helps retain moisture. Batteries included.

ITEM CODE DESCRIPTION SRPHMDPH200 Waterproof pH Temperature Meter $99.95HMDSPP2 Replacement pH Sensor 49.95

PH-200 WATERPROOF pH/TEMP COMBO METERThis handheld/portable pH tester is perfect for both consumer or commercial use. It measures both pH (0–14) and temperature (0–80 °C; 32–176 °F). The PH-200 meter is three-point factory calibrated to 4, 7, and 10 pH. The meter can be recalibrated with digital calibration using the push buttons. It is accurate to +/- 0.02 pH. Comes with cap, batteries, and lanyard.

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RAPITEST pH SOIL TESTER 1 color comparator for pH. 10 tests.

ITEM CODE DESCRIPTION SRPLL01612 Rapitest pH Soil Tester $5.45

DIGITAL SOIL THERMOMETERImprove your seedling and transplanting results by planting at the safe and proper soil temperature. Easy to read digital readout. Guidelines for germination and transplant temperatures included.

ITEM CODE DESCRIPTION SRPLL01625 Digital Soil Thermometer $14.45

DIGITAL MOISTURE METER This sleek, updated design offers an instant and easy to read digital format. It checks soil moisture where it counts: at root level. Monitoring a plant’s soil moisture level helps prevent over and underwatering. Batteries required and included. Digital results from 0 to 9.9. Includes printed instructions and extensive plant list.

ITEM CODE DESCRIPTION SRPLL01825 Digital Moisture Meter $11.95

DIGITAL pH METER The slender redesigned meter style provides an easier to read, instant digtal read-out. It measures and displays the acidity/alkalinity of garden and container soil. Digital results from 3.5 to 9.0. Instructions and plant pH preference list included. Batteries are required and included.

ITEM CODE DESCRIPTION SRPLL01845 Digital pH meter $13.95

RAPITEST ELECTRONIC 4-WAY ANALYZER Unique three probe design allows one meter to measure the essentials for plant growth: soil pH, fertility, soil moisture, and the amount of sunlight per day.

ITEM CODE DESCRIPTION SRPLL01880 Rapitest Electronic 4-Way Analyzer $34.95

RAPITEST DIGITAL 3-WAY ANALYZER This digital 3-way soil analyzer will help you get the proper readings for soil pH, soil fertility, and soil temperature. Gardeners enjoy using meters as an easy and convenient method to check soil for these readings; just a couple of touches to the digital analyzer deliver information for optimal plant growth. This analyzer will help you see fertility levels. It has a quick and easy to read fertility meter that reads the combined levels of nitrogen, phosphorus and potash to determine proper health, growth and productivity for your plants. This tester also has a test feature for soil temperature and pH levels.• Easy to read digital results

• Measures soil pH, soil temperature and soil fertility

• Fertility results are compensated for soil temperature

• Guides and instructions included for all 3 functions

• pH readings are auto-adjusted based on soil temperature

ITEM CODE DESCRIPTION SRPLL01835 Rapitest Digital 3-Way Analyzer $34.95

RAPITEST SOIL TEST KITSQuickly and easily tests soil samples measuring levels of pH, nitrogen, phosphorus, and potash. 4 individual color comparators for pH, NPK. 10 tests for each.

ITEM CODE DESCRIPTION SRPLL01605 Rapitest Digital Soil Test Kit $34.95LL01601 Rapitest Soil Test Kit 17.95

LL01605

LL01601

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SMART 3-IN-1 METER WITH pH/EC/TDSSmart 3-in-1 meter now has a faster processor, a 100% larger LED display, and the convenience of a single probe to measure pH, conductivity and TDS. Also features Automatic Temperature Compensation. Easy to calibrate. Simple and ready to use right out of the box. Comes with calibration solution, mounting bracket and 9V alkaline battery. (Replaces MISM802)

ITEM CODE DESCRIPTION SRPMIMW802 Milwaukee 3 Function MW802 $234.95 MISE600 Replacement Probe for MIMW802 w/1m cable 99.95

WATERPROOF TESTERS Stainless steel probes deliver fast and accurate readings with ten times better resolution. Comes with protective case and calibration solution.

ITEM CODE DESCRIPTION SRPMIT75 Milwaukee TDS T75 Tester Waterproof $85.95MIT76 Milwaukee TDS T76 Tester Waterproof 85.95

ITEM CODE DESCRIPTION SRPMIC65 EC65 Waterproof Tester $80.95

EC65 WATERPROOF TESTERThe EC65 is a microprocessor based conductivity tester with a rugged one-piece IP67 waterproof casing. Submersible up to the LCD! This instrument is a low-cost and easy-to-use meter with a replaceable electrode. Features automatic temperature compensation, IP67 waterproof casing, replaceable electrode, and easy-to-read LCD.

ITEM CODE DESCRIPTION SRPMIMA871 Milwaukee Digital Brix Refractometer $169.95

DIGITAL BRIX REFRACTOMETER• Range 0–85% brix, resolution 0.1%

• With automatic temperature compensation (ATC)

• Includes battery

pH METER W/ATC Highly accurate, portable and now faster than ever with a new chipset and motherboard, the MW102 features a double junction electrode with one meter cable, automatic calibration, and a new, larger, and easier to read LED display. Includes 9V alkaline battery.

MW100 PORTABLE pH HAND METERThis smart pH meter is a low cost portable meter with a very fast and accurate processor. Unit comes with detachable probe, 9V battery and calibration solution.

ITEM CODE DESCRIPTION SRPMISM101 Milwaukee pH hand meter SM101 $122.95MIMC110 Milwaukee pH Monitor $141.95

pH MONITOR WITH HI-LO USER SELECT ALARMThis pH Monitor has a range of 0.0 to 14.0, with 2-point manual calibration and accuracy of ±0.2 pH. Set point range is 3.5 to 7.5 pH. LED visual alarm active when reading is higher or lower (user select) than the set point. Comes with 12V DC power adapter, MA911B/2 double junction pH probe, 20 ml pH 7.01 calibration solution, and screwdriver for calibration. Also includes mounting kit and probe holder.

ITEM CODE DESCRIPTION SRPMIBEM401 Continuous Monitor/Portable TDS Meter $114.95

CONTINUOUS MONITOR/ PORTABLE TDS METERThis smart and simple TDS meter features manual calibration, faster processor, larger easy-to-read LED display, smaller & lighter ergonomic case design. Range TDS: 0–1990 mg/L (ppm). Resolution TDS: 1 mg/L (ppm). Accuracy TDS: 2% full scale. Calibration: 1 point - manual. Environment: 0–130F. Battery type: 9V alkaline (included).

ITEM CODE DESCRIPTION SRPMIPH55 Milwaukee Waterproof pH Tester $82.95MIPH55PROBE pH/Temp Probe for pH55 and pH56 49.95

MILWAUKEE WATERPROOF pH TESTERWith a range of -2.0 to 16.0 pH at 0.1 pH resolution, this tester is accurate to ± 0.1 pH. Features automatic temperature compensation, calibration 2 points - automatic, with auto-off after 8 minutes of non-use. User select 6 buffer types. Environment 32 to 122F (0 to 50 C). Display LED & push to hold. Battery life 300 hours of use. Requires four 1.5V button batteries (included). Unit is labeled "Martini Instruments" (a laboratory equipment division of Milwaukee Instruments).

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ITEM CODE DESCRIPTION SRPMIAG900 Milwaukee pH - EC - TDS KIT $239.95

AG900 KITMilwaukee Instruments AG900 provides instant readings of the three most important factors in efficient plant production: pH, EC, and TDS. The AG900 kit comes with an MW802 hand held microprocessor, calibration solution, measuring cup for soil testing, a comprehensive 21-page operational and testing manual, 9V battery as well as a protective carrying case. For soil and tank measurement of pH-EC-TDS.

ITEM CODE DESCRIPTION SRPMIPH600 Milwaukee pH Tester w/1 Point Manual Calibration $33.95

pH TESTER W/1 POINT MANUAL CALIBRATION• Range: 0.0 to 14.0 pH

• Resolution: 0.1 pH

• Accuracy: +/- 0,1 pH

• Calibration: manual, 1 point

• Battery type: 3 x 1.5V alkaline (700 hrs. of use)

STANDARD CALIBRATION SOLUTIONSAvailable in 220 ml bottles and 20 ml sachets. Traditional buffer solutions are packed in 220 ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode into the sachet and calibrate. Sachets are sold in boxes of 25 pieces.

ITEM CODE DESCRIPTION SRPMI10032P 1382 TDS Solution 20 ml $24.95MI10442P 1500 ppm Sachet 24.95MI10004P PH4 Solution 20 ml Sachet 24.95MI10007P PH7 Solution 20 ml Sachet 24.95MIMA9004 PH4 Solution 220 ml Bottle 10.95MIMA9007 PH7 Solution 220 ml Bottle 10.95MIMA9062 1382 ppm Solution 220 ml 10.95

ITEM CODE DESCRIPTION SRPMIBEM101 Continuous Monitor/Portable pH Meter $136.95

CONTINUOUS MONITOR/PORTABLE pH METERpH Meter, Range 0.00 to 14.00 pH, with 2 point manual calibration, manual temperature compensation, ±0.02 pH accuracy, comes with an SE220 double junction pH probe, 110V power supply, and 9V battery, with unit mounting kit, probe holder, 20 ml pH 7.01 & 4.01 sachet calibration solution and screwdriver for calibration – uniquely designed to serve as both a continuous pH monitor and portable pH meter.

ITEM CODE DESCRIPTION SRPMIPH600BX pH Tester w/1-Point Manual Cal $34.95

pH TESTER WITH 1 POINT MANUAL CALpH Tester with 1 point manual calibration, ± 0.2 pH Accuracy range: 0.0pH to 14.0 pH Full Range tester - Unit comes with 30 Day Warranty -- Snap Over Protective Case - 7.01 Calibration solution and calibration screwdriver are included with unit.

ITEM CODE DESCRIPTION SRPMIBEM802 Smart 3-in-1 Continuous Monitor/Portable

Meter$254.95

SMART 3-IN-1 pH/EC/TDS CONTINUOUS MONITOR/ PORTABLE METERUniquely designed to serve as both a continuous combo monitor and portable combo meter. Range: 0.00–14.00 pH, 0–4000 ppm, 0.00–6.00mS/cm, accuracy ±0.20 pH and ± 2% full scale for EC & TDS. Comes with SE600 combo probe, 110V power supply, 9V battery, unit mounting kit, 20ml sachet of calibration solution of pH 7.01, 1500 ppm and 1413µS/cm.

ITEM CODE DESCRIPTION SRPMISE220 Milwaukee Double Junction pH Probe for MW100 $56.95 MISE600 Milwaukee Replacement Probe for MW802 99.95

MILWAUKEE REPLACEMENT PROBESDOUBLE JUNCTION pH PROBE FOR MW100 (Item #MISE220) For all “MW” and old style “SM” pH units – replaces the old MA911B/1. Includes 1 meter cable and gel filled electrolyte solution.REPLACEMENT PROBE FOR MW802(Item #MISE600) For new style MW801 / MW802 units only.

MISE600

MISE220

ITEM CODE DESCRIPTION SRPMIMC410 Milwaukee TDS - ppm Monitor $128.95

MILWAUKEE TDS - PPM MONITORTDS - ppm meter. Range: 0–1990 ppm. 1 point manual calibration, accuracy at 1 ppm, supplied with MA811D/1 TDS probe, 110V power supply, unit mounting kit, probe holder, a 20 ml, 1382 ppm sachet calibration solution, and screwdriver for calibration. May be used as a stationary 24/7 monitor or portable TDS meter.

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METERS & SOLUTIONS

ITEM CODE DESCRIPTION SRPND1100041 Tri Calibration Kit $19.95

TRI CALIBRATION KIT Nutradip calibration solutions are now available in this convenient tripack and are compatible with all popular scales and meters. Kit includes Nutradip pH4 Calibration Solution, Nutradip pH7 Calibration Solution, and Nutradip EC ppm Calibration Solution.

MILWAUKEE pH HAND METER This smart pH meter is a low cost portable meter with a very fast and accurate processor. Comes with detachable probe, 9V battery and calibration solution.

MILWAUKEE pH MONITOR WITH HI-LOW ALARMFeatures user selectable hi/low set point and visual LED alarm. Range: 0.0–14.0 pH; Resolution: .1 pH; Accuracy: +/- .2 pH. Set point range for alarm: 5.5–9.5 pH. Includes 12 VDC adapter and mounting kit, 20 ml pH 7.01 calibration solution, and double junction pH electrode (MA911B/2) with 2 m cable (BNC connector).

MILWAUKEE pH CONTROLLER WITH HI-LOW ACTIVATIONProfessional pH controller especially designed for use with aquariums. Features user selectable Hi/Low Set Point, manual 2-point calibration, visual LED alarm. Includes 12 VDC adapter and mounting kit, power plug for CO2 dosing, and double junction pH electrode with 2 m cable (BNC connector).

ITEM CODE DESCRIPTION SRPMIMW100 Milwaukee pH Hand Meter – accuracy 0.1 $115.95MIMC120 pH Monitor w/Hi-Low Alarm LED & User Set Pnt. 149.95MIMC122 pH Controller w/Hi-Low Activation & User Set Pnt. 199.95

ITEM CODE DESCRIPTION SRPJL4423000Q Myron L TDS Calibration Solution, 1 L, 16/cs $28.95

MYRON L SOLUTIONMyron L 442 Standard TDS Calibration Solution is the best choice when measuring city water supply, wells, boiler and cooling water samples, etc. “442” refers to the combination of salts mixed with deionized water to comprise this standard: 40% sodium sulfate, 40% sodium bicarbonate, 20% sodium chloride. A combination of standard salts is necessary since natural water salt type and concentration can vary greatly by location.

NUTRADIP pH PROBE Nutradip pH probes are a reliable way to measure acidity in your nutrient solution. This probe is a continuous monitoring pH meter with automatic temperature compensation, with DC power built in for portability. Nutradip probes are engineered for accuracy and durability, helping growers measure and monitor their success for over 15 years.

ITEM CODE DESCRIPTION SRPND1100053 Probe pH Electrode 65.95

NUTRADIP AC/DC COMBO METERS These continuous monitoring meters feature automatic temperature compensation, with high quality probes and AC/DC power built in for portability. Engineered for accuracy and durability, they are lightweight, splash resistant and have an easy-to-read display. Wall mount or hand held. Includes replaceable 9V battery and calibration solution.

ITEM CODE DESCRIPTION SRPND1100037 Nutradip ppm AC/DC Combo Meter $113.95ND1100024 Nutradip pH AC/DC Combo Meter 122.95

ITEM CODE DESCRIPTION SRPHGPROBAT Batteries for pH/TDS pen (4pk/6 pks per case) $6.95

BATTERIES FOR pH/TDS PENThese 1.4V batteries are compatible with most digital pens.

ITEM CODE DESCRIPTION SRPJLPT1 Myron L Ultrapen – SPO $209.95

MYRON L ULTRAPEN The Ultrapen TDS/Conductivity/Salinity pocket pen offers the accuracy of benchtop lab equipment in an affordable, portable, compact pen. Extremely accurate, fast and versatile for use in diverse water quality applications, the Ultrapen is easy to calibrate and easy to use. Accuracy of ±1% of reading ±.2% at calibration point. Proprietary temperature compensation, TDS conversion algorithms, and autoranging. Highly stable microprocessor-based circuitry. Rugged, reliable, shock-resistant fully encapsulated electronics, body constructed of aircraft aluminum. Waterproof housing. True one-handed operation with simple one-button function. High capacity N-type battery included.

Comes with convenient holster

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METERS & SOLUTIONS

ITEM CODE DESCRIPTION SRPOK0065400 4.01 pH Calibration Solution, 500 ml $16.95OK3565301 4.01 pH Calibration Sol. (20 pouches/bx) 45.95OK0065404 7.0 pH Calibration Solution, 500 ml $16.95OK0065318 1413 TDS Calibration Solution, 500 ml 16.95

CALIBRATION SOLUTIONSOakton® buffers for meters with 0.01 resolution are standardized against NIST-certified pH references within 0.01 pH at 77°F (25°C). Store buffers away from direct sunlight.

ITEM CODE DESCRIPTION SRPOK3546210 Eco Testr TDS Low – 0 to 1990 ppm $83.95OK3546215 Eco Testr TDS High – 0 to 10.0 ppt 85.95

ECO TESTRS - TDS HIGH & LOW New economical conductivity and TDS pocket meters feature a large, ergonomically designed display so that you can easily view measurements at a glance. The orientation of the display means there’s no need to turn your head or tilt the tester. Waterproof and dustproof housing is designed for use in dirty and damp field conditions. Convenient, built-in belt/pocket clip keeps the tester accessible when not in use. OK3546210 OK3546215

ITEM CODE DESCRIPTION SRPOK35423-00 Oakton Waterproof Ecotestr pH1, w/One Point

Calibration$69.95

OK35423-10 Oakton Waterproof Ecotestr pH2, w/Auto Temp Compensation & Up to 3 Point Calibration

87.95

WATERPROOF ECOTESTRS®

Checking pH levels once a day might not be enough to prevent a serious problem in your water quality application. These pH meters feature a large display that lets you check your pH levels at a glance so you can optimize pH and nutrient strength during growth, flowering, and fruiting. OK35423-00 OK35423-10

ITEM CODE DESCRIPTION SRPOK3563410 Oakton pH Testr 10-.1 pH Accuracy ATC* $133.95OK3563420 Oakton pH Testr 20-.01 pH Accuracy ATC* 146.95OK3563430 Oakton pH Testr 30-.01 pH Accuracy ATC* 161.95OK3562438 Oakton Replacement Sensor for pH Testr 10/20/30 98.95

OK3563430OK3563420OK3563410

DOUBLE JUNCTION pH TESTRS®

High ±0.01 pH accuracy in a waterproof pocket-sized instrument. Features a double junction electrode ideal for dirty water and solutions with heavy metals or other contaminants.

* ATC = Automatic Temperature Compensation

ITEM CODE DESCRIPTION SRPOK3542500 Waterproof PCTestr 35 (ph/conductivity) $192.95OK3542505 Waterproof PTTestr 35 (pH/TDS) 192.95OK3542550 Replacement Sensor 112.95

WATERPROOF DUAL PARAMETER TESTRS® Two important measurements in one instrument. The PCTestr tests conductivity and pH while the PTTestr tests TDS and pH. They feature easy-to-read displays, push-button calibration, hold function, and error messages. Valox® housing and stainless steel electrodes offer good chemical compatibility and durability, and are designed to float. All waterproof Testrs have replaceable sensors. OK3542500 OK3542505

TDSTESTRS® Check nutrient concentration and temperature with one simple test. All the features of the TDS and more in a single instrument! Analyze hydroponic solutions using either cup-style or dip-style measurements. Cup-style is ideal for small volumes, samples from valves, or when it is impractical to use dip-style sensors.

ITEM CODE DESCRIPTION SRPOK3566210 Oakton Waterproof TDS Testr 11 $117.95

OK3566215 Oakton Waterproof TDS Testr 11+ 0-2000ppm/±1% FS

159.95

OK3566117 Oakton Replacement Electrode for 11 Series 70.95

OK3566215

Latest greatest @ Hydrofarm.com

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PH UP & PH DOWN – PH ADJUSTING SOLUTIONS Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. When the pH of the nutrient is not ideal, use the pH Up & Down Adjusting Solutions. For example, acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water or pH unstable media such as when rockwool is used, or when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.

ITEM CODE DESCRIPTION SRPpH UP LIQUID GH1521 pH Up Base, 8 oz $90.48 GH1522 pH Up Base, 1 qt 129.12 GH1523 pH Up Base, 1 gal 107.60 pH DOWN LIQUID GH1531 pH Down Acid, 8 oz $90.48 GH1532 pH Down Acid, 1 qt 129.12 GH1533 pH Down Acid, 1 gal 107.60 pH UP DRY CONCENTRATEGH1525 pH Up Dry Base, 1.5 lbs $15.20GH1527 pH Up Dry Base, 16 lbs 115.20

ITEM CODE DESCRIPTION SRPGH1541 pH 4.01 Calibration Solution, 8 oz $7.54 GH1542 pH 4.01 Calibration Solution, 1 qt 21.50 GH1551 pH 7.0 Calibration Solution, 8 oz $7.54 GH1552 pH 7.0 Calibration Solution, 1 qt 21.50 GH1571 1500 ppm Calibration Solution, 8 oz $8.20 GH1572 1500 ppm Calibration Solution, 1 qt 21.50

CALIBRATION SOLUTIONS General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use these reference solutions widely among many popular brands of meters using the NaCl scale. Technicians check each batch to ensure that these solutions are exactly calibrated.

DIGITAL pH CONTROLLERAccurately, reliably, and automatically measures and controls the pH of any water-based solution, including hydroponic nutrient mixtures and fish aquarium water. Includes a chemically resistant low voltage dosing pump, and both pH and temperature sensors. Easy to read digital display, adjustable dosing and mixing times, adjustable pH dead band, maximum number of dosing cycles, pH high and low limits, and data logger.

ITEM CODE DESCRIPTION SRPAPCEPH1 Digital pH Controller $369.95APCEPH1RP Replacement probe for APCEPH1 64.95APCEPH1SK pH Controller Sampling Kit 74.95

pH TEST INDICATOR Simply fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the test vial. Many experienced growers prefer this pH Test Kit to expensive electronic meters because of its reliability and ease of use.

ITEM CODE DESCRIPTION SRPGH1514 pH Control Kit $17.20 GH1515 pH Test Kit 1 oz 7.54 GH1516 pH Test Indicator 8 oz 10.76

ITEM CODE DESCRIPTION SRPESEPT1 Hydroponic Combometer pH/EC/TDS $227.95

pH/TDS-EC/TEMP METERHydroponic Essentials Combo meter can be used anytime and anywhere to help you manage your crops’ daily nutrient requirements. Calibration of the pH and EC/TDS is very easy using the push buttons on the meter and Essentials calibration solutions. The Combo meter offers the added benefit of being able to select the display options for temperature as ºC or ºF and nutrient solution as EC/TDS.

• Continuous, accurate monitoring solution

• Easy-to-read display

• Measures pH, nutrient strength, and temperature

• Auto turn-off function

• Factory calibrated

Great for hydroponics

pH TEST KITThis pH test kit is good for 150 tests. At the rate of 3 tests per week it will last one year, making it excellent value for money. This kit covers a pH range of 3–10 measuring in 0.1 increments. (Wide Spectrum) Measures 3–10 pH.

ITEM CODE DESCRIPTION SRPESPHTEST Active Aqua pH Test Kit $5.95

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METERS & SOLUTIONS

BOTANICARE pH UP & pH DOWN Botanicare’s pH Up consists of a 29% concentrated Potassium Hydroxide solution that has an extremely low level of phytotoxicity and does not contain salts or chlorides. Botanicare’s pH Down consists of a 29% concentrated Phosphoric Acid solution that rapidly lowers pH levels with its gentle, non-burning formula.

ITEM CODE DESCRIPTION SRPBCNSPHHQT pH Up, 1 qt $143.40 BCNSPHHGAL pH Up, 1 gal 111.80 BCNSPHLQT pH Down, 1 qt $143.40 BCNSPHLGAL pH Down, 1 gal 111.80

ITEM CODE DESCRIPTION SRPML21398 pH Up, 16 oz $14.95ML21399 pH Up, 32 oz 24.95ML21400 pH Up, 1 gal 49.95ML21401 pH Up, 2.5 gal 89.95ML21402 pH Down, 16 oz $14.95ML21403 pH Down, 32 oz 24.95ML21404 pH Down, 1 gal 49.95ML21405 pH Down, 2.5 gal 89.95

MICROBE LIFE pH UP & pH DOWNWhen used as directed, Microbe Life pH Up and pH Down safely raise and lower pH levels without harming plants. Both products combine pH adjusters for buffered effectiveness, and contain three electrolytes to help maintain osmotic balance.

ITEM CODE DESCRIPTION SRPHOH81511 Earth Juice Natural Up, 1 lb $10.24 HOH81512 Earth Juice Natural Up, 2 lbs 18.41 HOH84033 Earth Juice Natural Up, 10 lbs 70.10 HOH84034 Earth Juice Natural Up, 30 lbs 202.19 HOH84021 Earth Juice Natural Down, 0.8 lbs $9.10 HOH84022 Earth Juice Natural Down, 1.6 lbs 16.38 HOH84023 Earth Juice Natural Down, 7.8 lbs 58.42 HOH84024 Earth Juice Natural Down, 25 lbs. 168.50

EARTH JUICE NATURAL UP & NATURAL DOWN These pH adjusting crystals will, once and for all, eliminate the hassles and worries of spilling, splashing and dealing with harsh liquid pH adjusters. Use to adjust the pH of fertilizer and plant micronutrient foliar solutions.

EARTH JUICE DOUBLE UPTM & DOUBLE DOWNTM

The "best choice" for liquid pH adjusters. Proprietary formulation that offers superior pH control.

ITEM CODE DESCRIPTION SRPHOH81101 Double Up, 1 qt $11.56HOH81201 Double Up, 1 gal 25.87HOH85101 Double Down, 1 qt $11.56HOH85201 Double Down, 1 gal 25.87

TECHNAFLORA pH UP & pH DOWN Moderate and maintain optimum pH levels. Both pH-balancing aids are manufactured using the highest-quality ingredients: potassium hydroxide to raise pH and nitric acid to lower pH. While ensuring stringent industry safety standards are met, Technaflora’s pH Up and pH Down are potent and effective in small doses.

ITEM CODE DESCRIPTION SRPTFPHU1L pH UP, 1 L $14.09 TFPHU4L pH UP, 4 L 28.21 TFPHU10L pH UP, 10 L 54.08 TFPHD1L pH Down, 1 L $14.09 TFPHD4L pH Down, 4 L 28.21 TFPHD10L pH Down, 10 L 54.08

ITEM CODE DESCRIPTION SRPBLU8010 Bluelab pH Up, 500 ml $219.00BLU8009 Bluelab pH Up, 1 L 203.00BLU8008 Bluelab pH Up, 1 gal 188.00BLU8007 Bluelab pH Down, 500 ml $170.00BLU8006 Bluelab pH Down, 1 L 156.00BLU8005 Bluelab pH Down, 1 gal 162.00

BLUELAB pH UP & pH DOWN Bluelab pH Up and pH Down Solutions are formulated to the highest standards – just add what’s required to raise or reduce pH. Your plants will thank you for it.

NEW HI98100 Checker® Plus pH Tester

shop.hannainst.com | sales@hannainst.com | (877) MY-HANNA

The HI98100 Checker Plus pH tester has been designed with many advanced features. The Checker Plus now offers automatic calibration to

one or two points, automatic buffer recognition, calibrated buffer tags, stability indicator, low battery indicator, and selectable automatic shut off.

The HI98100 Checker Plus is supplied complete with meter, probe, calibration solutions and cleaning solutions packaged in a durable plastic carrying case

One button operation

Replaceable pH electrode

1000 hours of battery life

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were created to assist non-profit and educational organizations

involved in horticulture and environmental sciences. With in-kind donations and technical expertise, Hydrofarm has been able to help schools and educational facilities launch and expand their programs, allowing students to learn hands-on gardening techniques and sustainable practices. Hydrofarm is happy to play a part in equipping current and future generations with the knowledge and expertise to live healthier and happier lives.

Hydrofarm helps to support communities across the US with sustainable growing equipment.

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