pH/EC Maintenance



Product Image Item Name- Price

1000ppm Calibration Solution

NaCl calibration solution 1000 ppm comes in lightweight HDPE plastic bottles. Sealed with a coated foam liner.
$6.95




12880 S/ cm conductivity solution

This Hanna conductivity calibration solution is widely used to assure the proper performance of conductivity meters with a scale higher than 10 mS.cm. This solution is used mainly for industrial...
$11.95




12880 S/cm Calib Solution, 25x20mL, case of 25

12,880 S/cm (mho/cm)
$30.95




1382 PPM Solution 220ml

1382 PPM Solution 220ml

Available in 220ml bottles and 20ml sachets. Traditional buffersolutions are packed in 220ml leak-proof bottles and are recommendedfor lab application. Sachets are sealed against light and air and...
$10.95




1382 PPM@25C Calibration Solution 20mL, case of 25

1382 ppm (mg/l) at 25C
$30.95




1382 TDS Solution, case of 25

1382 TDS Solution, case of 25

Available in 220ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and air and...
$22.95




1382ppm Solution, 230ml

The conductivity solutions are made of high quality Potassium Chloride with different strengths. The solutions are standardized with a conductivity meter, calibrated by high purity NIST 999 Potassium...
$14.95




1382ppm TDS Sol, 460ml

Testing solution
$17.95




1413 mS Packet, case of 25

 Available in 220ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and...
$20.99




1413 S/cm (EC) Calib Solution, 25x20mL, case of 25

1,413 uS/cm (umho/cm)
$30.95




1413mS/cm Sol. 230mL

conductivity solutions contained in opaque FDA approved bottle material which prevents light from interfering with the value of the solutions.1,413 S/cm (mho/cm)
$14.95




1413uS & 1500 PPM Calibration Kit, 2 Pack 2x16oz

1413uS & 1500 PPM Calibration Kit, 2 Pack 2x16oz

The Genesis Lab manufactures calibration standards for Total Dissolved Solids and Electrical Conductivity for the purpose of keeping your solution concentration meters reading properly.
$28.00




1413uS & 1500 PPM Calibration Kit, 2 Pack 2x8oz

1413uS & 1500 PPM Calibration Kit, 2 Pack 2x8oz

The Genesis Lab manufactures calibration standards for Total Dissolved Solids and Electrical Conductivity for the purpose of keeping your solution concentration meters reading properly.
$20.00




1500 ppm Packet, case of 25

1500 ppm Packet, case of 25

This item is sachets Available in 220ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed...
$22.95




1500 PPM@25C Calibration Solution 20mL, case of 25

1,500 ppm (mg/l) at 25C
$30.95




1500PPM Solution, 230ml

1,500 ppm (mg/l) at 25C
$13.95




2-Way pH & Moisture Meter

2-Way pH & Moisture Meter

Gardeners can conveniently test their moisture, and pH levels with the handy ActiveAir 2-Way Meter. Moisture readings register on a scale of 0 (dry) to 10 (moist), and pH readings between pH 0...
$7.95




ActiveAir 3 - Way Meter

Gardeners can conveniently test their moisture, light, and pH levels with the handy ActiveAir 3-Way Meter. Moisture readings register on a scale of 0 (dry) to 10 (moist), light readings range from 0...
$9.95




AquaPro TDS/Temperature Meter

FEATURES Measures total dissolved solids (TDS) and temperature. Automatic Temperature Compensation (ATC) Water-resistant housing Measurement Range: 0-5000 ppm Digital Calibration (push button)...
$44.95




Batteries for pH/TDS pen, 1.4v, pack of 4

Batteries for pH/TDS pen, 1.4v, pack of 4

Contains four (4) batteries per pack, 6 packs per case.
$6.95




Bluelab 4.0 250 ML Calibration Solution

Bluelab 4.0 250 ML Calibration Solution

The Bluelab Calibration Solutions are a very necessary part of a growers toolbox. These solutions are manufactured specific to the calibration process and referenced to high laboratory standards by...
$8.00




Bluelab 4.0 500 ML Calibration Solution

Bluelab 4.0 500 ML Calibration Solution

The Bluelab Calibration Solutions are a very necessary part of a growers toolbox. These solutions are manufactured specific to the calibration process and referenced to high laboratory standards by...
$11.00




Bluelab 7.0 250 ML Calibration Solution

Bluelab 7.0 250 ML Calibration Solution

The Bluelab Calibration Solutions are a very necessary part of a growers toolbox. These solutions are manufactured specific to the calibration process and referenced to high laboratory standards by...
$8.00




Bluelab 7.0 500 ML Calibration Solution

Bluelab 7.0 500 ML Calibration Solution

The Bluelab Calibration Solutions are a very necessary part of a growers toolbox. These solutions are manufactured specific to the calibration process and referenced to high laboratory standards by...
$11.00




BlueLab Combo Meter

BlueLab Combo Meter

The Bluelab Combo Meter is a conductivity, pH and temperature meter all in one. It comes with a pH probe and conductivity and temperature probe, which are simply placed into the solution and the...
$295.00




BlueLab Combo Meter

BlueLab Combo Meter

The Flavor Invigorator PURE BLEND is a hydro-organic compost solution blended with select organic ingredients from the land and sea. PURE BLEND contains all major and secondary elements, as well as...
$295.00




Bluelab Nutrient Probe Cleaning Kit

Bluelab Nutrient Probe Cleaning Kit

The Probe on Bluelab meter, monitor, Truncheon or controller must be kept clean. If the probe is contaminated or dirty, it affects the accuracy. The probe surface is where the instrument takes the...
$23.95




Bluelab pH meter with probe

Portable, easy-to-use pH meter that accurately measures pH anytime, anywhere to help you maintain optimum levels and improve plant development. Main Features Quality pH probe includedCalibration...
$200.00




Bluelab pH Probe Cleaning & Calibration Kit

The Probe on Bluelab meter, monitor, Truncheon or controller must be kept clean. If the probe is contaminated or dirty, it affects the accuracy. The probe surface is where the instrument takes the...
$35.95




Bluelab Truncheon

Bluelab Truncheon

The amazing Truncheon EC meter from Bluelab uses flashing lights to show the EC, CF and PPM readings. Truncheons are very accurate, reliable, and come with a five year warranty.
$135.00




Cal Check Solution

These sachets are for use with the Hanna HI9813-6 Gro'Chek Portable pH/TDS/EC/Temp Meter. The Cal-Check feature of this meter utilizes the Cal-Check Solution in order to determine if the probe is in...
$43.95




Cal Sol 1380 parts per million, 2 oz

Cal Sol 1380 parts per million, 2 oz

 
$5.98




Champ pH Tester

Champ is a rugged pH meter withsingle point calibration and a battery life of over 1 yeareven if used for 1 hour everyday. The new design features a larger LCD someasurments are easier to read from...
$58.95




Checker pH Tester with Replaceable Electrode

The Checker supplies you with fast and accurate readings from 0.00 to 14.00 pH with a resolution of 0.01 pH. This compact tester features a large easy-to-read LCD and a simple to perform 2-point...
$38.95




Combo pH/EC/TDS/C/PPM Tester

Dual-level LCDReplaceable pH Electrode CartridgeAutomatic Caliibration
$197.95




Commercial Grade Combo pH/EC/TDS/Temp Meter

Commercial Grade Combo pH/EC/TDS/Temp Meter

Multi-range pH/EC/TDS and Temperature meter - 4-in-1 pH/EC/TDS/Temperature probe - The rugged MA851D/1 probe has been designed for heavy-duty applications (agriculture, industrial, etc.) RANGE : 0.00...
$399.95




Continuous pH/TDS/temp Monitor

Designed for continuous monitoring of pH, TDS and temperature the HI 981504 is simple to install and can be placed above the sample to be tested. pH, TDS and temperature measurements are...
$246.95




DiST 1 TDS Tester

Automatic Temperature CompensationSimple 1 Point CalibrationEasy-to-use and Inexpensive
$71.95




DiST 5 EC/TDS Meter

Dual-level LCDReplaceable Graphite Electrode CartridgeAutomatic Calibration
$126.95




EC Hand Meter SM302

This smart meter is a low cost portable meter with no unnecessary frills. Comes complete with electrode 9v battery and calibration solution.
$106.95




EC65 Waterproof Tester

EC65 Waterproof Tester

The C65 is a microprocessor based Conductivity Tester with a rugged one-piece IP67 waterproof casing. Immersible up to the LCD! This instrument is a low cost and easy to use Meter with a replaceable...
$76.95




Eco Tester TDS High

Eco Tester TDS High

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...
$95.95




Eco Tester TDS Low

Eco Tester TDS 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...
$95.95




Electrode Cleaner 16 oz

General Purpose
$18.95




Electrode Cleaner Twin Pack, 2x8 oz

Electrode Cleaner Twin Pack, 2x8 oz

Electrode and Probe Cleaning Solutions - Used to clean meter tip. Works for both pH and conductivity meters. Comes as a two part A and B cleaning solution to remove both organic and inorganic...
$17.50




Electrolyte Solution

The electrolyte level in refillable electrodes should be checked before performing any measurements. If the level is low, refill with the proper electrolyte solution to ensure the correct electrode...
$47.00




Floating Thermometer

Floating Thermometer

Delivers easy and accurate readings of your water temperature. The gauge floats and has a pressure sensitive backing for easy mounting. It features readings in both Celsius and Fahrenheit, as well as...
$2.09




Gro'chek replacement probe for HI9813-6

Gro'chek Replacement Probe for H19813-6
$132.95




GroChek EC Electrode

Hanna replacement EC electrode for pocket testers.
$54.95




GroChek EC Monitor

WaterproofRugged HousingLarge LCD
$111.95




GroChek EC Tester

Ideal for hydroponics and greenhousesWaterproof housing floats for quick retrievalautomatic calibrationauto switch-off for longer battery lifefertilizer mixer (long and rugged probe)
$107.95




GroChek Hanna EC/TDS Monitor w/ HI7632 EC Probe

large liquid crystal display for easy readinghousing completely sealed against vapors and humityprobe automatically compensates for temperature variation
$111.95




GroChek Hanna pH Indicator

WaterproofRugged HousingLarge LCD
$111.95




GroChek Hanna pH/EC/TDS/C/PPT Pocket Tester

Dual-level LCDReplaceable pH Electrode CartridgeAutomatic Calibration HI98129 Shown Above
$197.95




GroChek pH & TDS Combo Continuous Reading Meter

Displays pH & EC SimultaneouslyAdjustable SetpointsSpace Efficient
$195.95




GroChek pH Tester

Shock Resistant CasingWater Resistant HousingReplaceable Electrode
$105.95




GroChek pH/EC/TDS/C Portable Meter w/ Cal Check

HI 9813-5N is a versatile, water resistant multiparameter portable meter specifically designed for agricultural applications such as hydroponics, greenhouses, farming and nurseries. It features an...
$275.95




GroChek pH/EC/TDS/C Portable Meter w/ Cal Check

HI 9813-6N is a versatile, water resistant multiparameter portable meter specifically designed for agricultural applications such as hydroponics, greenhouses, farming and nurseries. It features an...
$275.95




GroChek pH/EC/TDS/Temp. Combo

Large, Dual-level Backlit LCDWaterproofAuto Calibration & pH Temp. Computing
$198.95




GroChek replacement probe for HI9813

GroChek replacement probe for HI9813
$121.95




GroChek replacement probe for HI9813-0

GroChek replacement probe for HI9813-0
$139.95




GroChek TDS Tester

WaterproofRugged Housing Large LCD
$107.95




Guardian Monitor

Guardian Monitor

Seasonal changes, sunlight hours, wind, inherent plant growth; from vegetative to fruiting; are all influencing factors to plant growth success. But more importantly, these parameters change the...
$345.00




Hanna Gro'CHEK pHEP 4 Meter

Dual-Level LCDReplaceable pH Electrode CatridgeAutomatic Calibration The pHep 4 includes features such as a dual-level LCD, battery level indicator, replaceable pH electrode cartridge, instability...
$109.95




Hanna Gro'CHEK pHEP 5 Meter

The pHep 4 and pHep 5 includes features such as a dual-level LCD, battery level indicator, replaceable pH electrode cartridge, instability indicator, automatic shut-off and automatic calibration all...
$93.00




Hydro RX Water & Soil Test Kit

Hydro RX Water & Soil Test Kit

Tired of guessing whether your water's nutrient levels are adequate? Hydro Rx takes the guess-work out of water management. Hydrofarm Test Lab has developed a kit that lets you manage your plant...
$39.95




MA 850 Replacement probe for SM801/802

MA 850 Replacement probe for SM801/802

MA 850 Replacement probe for SM801/802
$94.95




Meter Cleaning & Storage Solutions Tri-Pack

Meter Cleaning & Storage Solutions Tri-Pack

Electrode and Probe Cleaning Solutions - Used to clean meter tip. Works for both pH and conductivity meters. Comes as a two part A and B cleaning solution to remove both organic and inorganic...
$33.00




Milwaukee 3 function MW802

 This 3-in-1 smart portable meter can read pH, EC, TDS and is temperature compensated. Easy to calibrate and includes calibration solution. Simple and ready to use right out of the box.
$229.95




Milwaukee Double Junction pH Electrode

Replacement pH probe for Milwaukee sm101 & sms102 Double Junction gel-filled pH Electrode with 1m cable. SMART Standard PH-EC- TDS Ph monitor,Range: 0.0 to 14.0 Ph, with 2 point manual...
$53.95




Milwaukee EC continuous read

Milwaukee EC continuous read

The SMS 310 Smart EC Monitor allows you to continuously monitor EC values directly in your aquatic environment. Features include: a user selectable set point, visual LED alarm when readings go below...
$122.95




Milwaukee EC hand meter SM301

Milwaukee EC hand meter SM301

This smart meter is a low cost portable meter with no unnecessary frills. Comes complete with electrode 9v battery and calibration solution.
$106.95




Milwaukee pH - EC - TDS KIT

Milwaukee pH - EC - TDS KIT

 Milwaukee Instruments AG900 provides instant readings of the three most important factors in efficient plant production: pH, EC, or TDS. The AG900 kit comes with an SM802 hand held...
$244.95




Milwaukee pH continuous read

The SMS 110 Smart pH Monitor allows you to continuously monitor pH values directly in your aquatic environment. Features include: a user selectable set point designed for freshwater environments,...
$113.95




Milwaukee pH Continuous {0.0 to 14.0}

Milwaukee pH Continuous {0.0 to 14.0}

pH MONITOR, RANGE: 0.0 to 14.0, WITH 2 POINT MANUAL CALIBRATION, AND ACCURACY OF ±0.2 pH. SET POINT RANGE: 5.5 TO 9.5 pH, AND LED VISUAL ALARM ACTIVE WHEN READING IS HIGHER THAN SET POINT....
$112.95




Milwaukee pH hand meter SM100

This 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.
$109.95




Milwaukee pH hand meter SM101

Milwaukee pH hand meter SM101

Milwaukee pH hand meter SM101 +/-.02 special order only.
$115.95




Milwaukee TDS Continuous Monitor with Cal-Test

 This continuous TDS monitor constantly reads TDS directly in your reservoir. Unique Cal-Check feature makes verification of calibration accuracy very easy. Comes with calibration solution and...
$104.95




Milwaukee TDS continuous read

The SMS 410 Smart TDS Monitor allows you to continuously monitor Total Disssolved Solids directly in your aquatic environment. Features include: a user selectable set point, visual LED alarm when...
$122.95




Milwaukee TDS hand held

The SM401 is a low cost and easy to use TDS Meter. Some of the SMS401's features include: Automatic Temperature Compensation Large and easy to read LCDEasy to UseElectrode Included SPECIFICATION...
$106.95




Milwaukee TDS/PPM T75 Tester WP

Milwaukee TDS/PPM T75 Tester WP

Stainless steel probes deliver fast and accurate readings with ten times better resolution. Comes with protective case and calibration solution.   Measures in part per million (PPM)
$73.95




Milwaukee TDS/PPT T76 Tester WP

Milwaukee TDS/PPT T76 Tester WP

Milwaukee TDS T76 Tester WP - measures in PPT
$75.95




Nutra-Dip Tri meter (pH, EC & Temperature)

Nutra-Dip Tri meter (pH, EC & Temperature)

The Nutradip Tri-Meter combines the technology of the pH and TDS meters and addresses an additional key factor in hydroponic growing, the temperature. Temperature in a nutrient solution is...
$233.95




Nutra-Dip continuous pH meter

Nutra-Dip continuous pH meter

The Nutradip pH meter will continuously measure the acidity or alkalinity level of your nutrient solution, a critical factor in successful hydroponic growing. The maintenance of proper pH levels in...
$133.95




Nutra-Dip continuous TDS meter

Nutra-Dip continuous TDS meter

The Nutradip Nutrient (TDS) meter will continuously measure the concentration of the Total Dissolved Solids (TDS) or nutrient levels in the growing solution being provided to the plants. It will...
$99.95




Nutra-Dip Tri meter (pH, PPM & Temperature)

Nutra-Dip Tri meter (pH, PPM & Temperature)

The Nutradip Tri-Meter combines the technology of the pH and TDS meters and addresses an additional key factor in hydroponic growing, the temperature. Temperature in a nutrient solution is...
$233.95




Nutradip pH/PPM/Temp meter

Nutradip pH/PPM/Temp meter

Water resistant Detachable probes and adapter Large, easy-to-read LED display
$199.95




Nutritest 2 oz Cal Sol 27.7 for Truncheon

Nutritest 2 oz Cal Sol 27.7 for Truncheon

Calibration solution for the Commercial Truncheon (AH83015 see image).
$4.95




Oakton Calibration Solution 15,000 uS, case of 20

Oakton Calibration Solution 15,000 uS, case of 20

Oakton Calibration Solution 15,000 uS
$33.95




Oakton Low/High/EC High Replacement Sensor

Oakton Low/High/EC High Replacement Sensor

This is a replacement part, not an entire unit! Optimize nutrient strength during growth, flowering, and fruitingSame reliable waterproof dustproof housing as pHTestr. Choose from models for...
$64.83




Oakton pHTestr 10 - .1 pH Accuracy ATC*

Oakton pHTestr 10 - .1 pH Accuracy ATC*

*ATC-Automatic Temperature Compensation. Optimize nutrient strength during growth, flowering, and fruitingReliable waterproof, dustproof housing and replaceable electrode provide long life and...
$127.95




Oakton pHTestr 20 - .01 pH Accuracy *ATC

Oakton pHTestr 20 - .01 pH Accuracy *ATC

*ATC-Automatic Temperature Compensation Optimize nutrient strength during growth, flowering, and fruitingReliable waterproof, dustproof housing and replaceable electrode provide long life and...
$137.95




Oakton pHTestrs replacement sensor

Oakton pHTestrs replacement sensor

replacement sensor for oakton's line of 10, 20, and 30 series pHtestrs (OK3563410, OK3563420, and OK3563430).
$93.95




Oakton Replaceable Electrodes pH WP 2 Pen

Oakton Replaceable Electrodes pH WP 2 Pen

THIS IS FOR A REPLACEMENT ELECTRODE not an entire unit Optimize nutrient strength during growth, flowering, and fruitingReliable waterproof, dustproof housing and replaceable electrode provide long...
$69.95




Oakton Waterproof EC Tester 11+

Oakton Waterproof EC Tester 11+

Automatically or manually select measuring rangeWaterproof, dustproof housings float Push-button calibration, HOLD function, and error messages Use these testers for either cup-style or dip-style...
$149.95




Oakton Waterproof TDS Tester11+

Oakton Waterproof TDS Tester11+

The Oakton TDSTestr 11 Series of TDS testers has a large, easy-to-read two-line display that shows units, measurement status, and a battery life indicator. The replaceable electrode allows for reuse...
$149.95




Oakton WP EC Tester 11

Oakton WP EC Tester 11

•Automatically or manually select measuring range •Waterproof, dustproof housings float Push-button calibration, HOLD function, and error messages Use this tester for either cup-style or...
$111.95




Oakton WP TDS Tester 11

Test nutrient concentration and check temperature with one testr. All the features of the TDS/ECTestrs and more. Analyze hydroponic solutions using either cup-style or dip-style measurements, with a...
$121.95




pH 4.01 Buffer, 16 oz

pH 4.01 Buffer, 16 oz

Used to calibrate pH meters to assure they are accurate and working properly. You should check your pH meter frequently because the properties of the meters membrane is constantly changing from...
$13.75




pH 4.01 Buffer, 8 oz

pH 4.01 Buffer, 8 oz

Used to calibrate pH meters to assure they are accurate and working properly. You should check your pH meter frequently because the properties of the meter's membrane is constantly changing from...
$10.00





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Ocean Forest Qt
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