pH & EC Control

57 products

Dial in your water — pH and EC/TDS meters, calibration solutions, and pH up/down adjusters for precise nutrient management.

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Hanna GroLine pH 7.01 buffer sachets, 25 count

$46.00

HI70007G is a high quality pH 7.01 calibration buffer designed with hydroponics, aquaponics, and greenhouses in mind. Single-use sachets are highly portable, with a small footprint and a lightweigh...

Hanna GroLine 1413 microsiemens conductivity standard sachets, 25 count

$46.00

HI70031G is a high quality 1413 uS/cm conductivity standard designed with hydroponics, aquaponics, and greenhouses in mind. Single-use sachets are highly portable, with a small footprint and a ligh...

Hanna GroLine 5000 microsiemens conductivity standard sachets, 25 count

$46.00

Unlock the full potential of your water conductivity measurements with Hanna HI70039G GroLine 5000 uS/cm Conductivity Standard Sachets! These sachets contain the perfect amount of solution for accu...

Hanna HI1285-8 GroLine pH EC TDS multiparameter probe

Hanna HI1285-8 GroLine pH/EC/TDS Multiparameter Probe, additional product view 2

$200.00

Pre-Amplified pH Electrode The pH electrode circuit has a built-in amplifier that serves to reduce the effects of electrical noise on the high impedance-pH measurement. Electrical noise can come ...

HM Digital 1000ppm calibration solution packets, 20 count

$32.99

Maximize accuracy with HM Digital 1000 ppm Calibration Solution! Each convenient 20mL packet helps calibrate your testing equipment to ensure precise readings. Trust in our solution to deliver reli...

Bluelab 2.77EC conductivity calibration solution bottle, 250 milliliters

$9.99

Achieve precise and accurate readings with Bluelab's 2.77EC Conductivity Calibration Solution! This 250mL solution ensures optimal performance of your conductivity meters, making it a must-have for...

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Bluelab pH 7.0 calibration solution bottle, 500 milliliters

$24.99

Elevate your gardening game with Bluelab pH 7.0 Calibration Solution! This 500mL solution ensures accurate pH readings for optimal plant growth. Say goodbye to guessing and hello to precision. Perf...

Ecowitt WH51 wireless soil moisture sensor

Ecowitt WH51 Soil Moisture Sensor, additional product view 2

$32.99

Soil Moisture Meter: measures soil moisture content within 72 seconds and the data can be viewed on our free WSView plus App after the WiFi configuration(requires a GW1100/GW2000 gateway[sold se...

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$139.99

Product Details: - Features: Measures pH and temperature - Selectable units for °C & °F - Backlit LCD display - Double junction probe (not replaceable) - Successful pH calibration indicator - H...

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Hanna GroLine 1413 conductivity standard bottle, 230 milliliters

$16.50

HI7031-023 is a GroLine 1,413 µS/cm conductivity standard that is prepared against a NIST traceable potassium chloride solution and supplied with a certificate of analysis. Hanna conductivity...

HM Digital 1000ppm calibration solution bottle

HM Digital 1000ppm Calibration Solution, additional product view 2

$11.99

NaCl calibration solution 1000 ppm comes in lightweight HDPE plastic bottles. Sealed with a coated foam liner. Brand Name: HM Digital Meters Product Type: Hydroponic Measuring Device Height: 3.3 in...

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Hanna HI9814 GroLine waterproof portable pH EC TDS meter

Hanna HI9814 GroLine Waterproof Portable pH/EC/TDS Meter, additional product view 2

$279.00

One of the best meters for hydroponics, our GroLine Waterproof Portable pH/EC/TDS Meter (HI9814) is a must-have for growers. Easily manage and monitor your growing nutrients with this customer favo...

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Hanna GroLine electrode storage solution bottle, 230 milliliters

$16.50

HI70300-023 is a GroLine storage solution prepared with reagent grade chemicals that can be used to ensure optimum performance of your pH and ORP electrodes. It is necessary to store a pH electrode...

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Hanna GroLine pH 7.01 calibration buffer bottle, 120 milliliters

$11.99

HI7007-012 is a high quality pH 7.01 calibration buffer produced in accordance with ISO 3696/BS3978 standards using high purity salts, deionized water, certified weight-checked balances, and Class ...

Hanna HI3895 NPK soil chemical test kit package

$29.99

The HI3895 is a chemical test kit that uses colorimetry and turbidimetry to measure four parameters common in soil testing: nitrogen, phosphorus, potassium, and pH. The HI3895 is supplied with all...

Advanced Nutrients pH-Up bottle, 1 liter

$29.99

Advanced Nutrients pH Up is the most concentrated pH adjuster there is on the market. Perfect for larger reservoirs.Directions: Use small amounts when adjusting the nutrient solution to affect the ...

Advanced Nutrients pH-Up bottle, 4 liters

$59.99

Advanced Nutrients pH-Up 4L

pH & EC Control

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