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Sensors & Meters

Sale Spider Farmer 5-in-1 pH Hydroponic Meter Kit

Spider Farmer 5-in-1 pH Hydroponic Meter Kit

Spider Farmer

$35.99 $49.99

Link4 Corporation Digital Temperature And Humidity Sensor

Link4 Corporation Digital Temperature And Humidity Sensor

Link4 Corporation

$506.61

Bluelab Conductivity Pen

Bluelab Conductivity Pen

Bluelab

$99.00

Hanna GroLine Hydroponics Waterproof pH/EC/TDS/Temperature Portable Meter

Hanna GroLine Hydroponics Waterproof pH/EC/TDS/Temperature Portable Meter

HANNA GroLine

$309.99

GroLine Hydroponics pH Tester

GroLine Hydroponics pH Tester

HANNA GroLine

$64.99

Bluelab OnePen

Bluelab OnePen

Bluelab

$249.00

HM Digital Replacement pH sensor for PH-200/COM-360

HM Digital Replacement pH sensor for PH-200/COM-360

HM Digital

$44.95

HM Digital Replacement Probe COM-300

HM Digital Replacement Probe COM-300

HM Digital

$62.95

Sale Bluelab pH Pen

Bluelab pH Pen

Bluelab

$103.00 $119.00

Bluelab Pro Automated pH and Nutrient Controller With WI-Fi

Bluelab Pro Automated pH and Nutrient Controller With WI-Fi

Bluelab

$1,376.94

Bluelab Guardian Monitor With Wi-Fi

Bluelab Guardian Monitor With Wi-Fi

Bluelab

$429.00

HANNA GroLine Instruments pH/EC/TDS & Temp Monitor

HANNA GroLine Instruments pH/EC/TDS & Temp Monitor

HANNA GroLine

$459.99

HANNA GroLine pH, EC/TDS Temperature Monitor

HANNA GroLine pH, EC/TDS Temperature Monitor

HANNA GroLine

$629.99

GroLine Digital Refractometer for Brix Measurement in Food

GroLine Digital Refractometer for Brix Measurement in Food

HANNA GroLine

$299.99

HANNA GroLine Portable Waterproof pH/EC/TDS Meter (High Range)

HANNA GroLine Portable Waterproof pH/EC/TDS Meter (High Range)

HANNA GroLine

$699.99

GroLine Waterproof Portable pH/EC/TDS/Temperature Hydroponics Meter Kit

GroLine Waterproof Portable pH/EC/TDS/Temperature Hydroponics Meter Kit

HANNA GroLine

$549.99

GroLine amplified pH/Temperature probe with quick connect DIN connector for HI981412

GroLine amplified pH/Temperature probe with quick connect DIN connector for HI981412

HANNA GroLine

$159.99

HANNA GroLine Direct Soil and Soilless Media pH electrode for use with HI9814

HANNA GroLine Direct Soil and Soilless Media pH electrode for use with HI9814

HANNA GroLine

$284.99

GroLine pH/EC/TDS Multiparameter Probe (Inline)

GroLine pH/EC/TDS Multiparameter Probe (Inline)

HANNA GroLine

$369.99

GroLine pH/EC/TDS Multiparameter Probe

GroLine pH/EC/TDS Multiparameter Probe

HANNA GroLine

$214.99

HANNA GroLine pH/EC/TDS Multiparameter Probe for use with HI9814

HANNA GroLine pH/EC/TDS Multiparameter Probe for use with HI9814

HANNA GroLine

$184.99

HANNA GroLine pH/EC/TDS/Temperature Probe with CAL Check

HANNA GroLine pH/EC/TDS/Temperature Probe with CAL Check

HANNA GroLine

$174.99

HANNA GroLine pH/EC/TDS Multiparameter Probe with CAL Check

HANNA GroLine pH/EC/TDS Multiparameter Probe with CAL Check

HANNA GroLine

$174.99

HANNA GroLine Pre-amplified pH and EC probe - HI1285-51

HANNA GroLine Pre-amplified pH and EC probe - HI1285-51

HANNA GroLine

$174.99

GroLine Nutrient Tester

GroLine Nutrient Tester

HANNA GroLine

$99.99

GroLine Waterproof Hydroponic pH Tester

GroLine Waterproof Hydroponic pH Tester

HANNA GroLine

$99.99

GroLine Waterproof EC/TDS (ppm) Tester

GroLine Waterproof EC/TDS (ppm) Tester

HANNA GroLine

$109.99

HALO2 GroLine Wireless pH Tester for Soil

HALO2 GroLine Wireless pH Tester for Soil

HANNA GroLine

$164.99

HANNA GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester

HANNA GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester

HANNA GroLine

$249.99

HANNA GroLine GroLine Soil pH Tester

HANNA GroLine GroLine Soil pH Tester

HANNA GroLine

$154.99

HANNA GroLine Soil Test Direct Soil Conductivity Tester

HANNA GroLine Soil Test Direct Soil Conductivity Tester

HANNA GroLine

$164.99

Bluelab ORP Meter

Bluelab ORP Meter

Bluelab

$219.00

Bluelab Truncheon Nutrient Meter

Bluelab Truncheon Nutrient Meter

Bluelab

$104.00

Bluelab Commercial Truncheon Nutrient Meter

Bluelab Commercial Truncheon Nutrient Meter

Bluelab

$155.00

Mammoth Lighting Par Meter and Spectrometer

Mammoth Lighting Par Meter and Spectrometer

Mammoth Lighting

$449.00

HM Digital Replacement pH sensor for HM-500/ HM-200

HM Digital Replacement pH sensor for HM-500/ HM-200

HM Digital

$54.95

HM Digital Replacement TDS/EC sensor for HM-500

HM Digital Replacement TDS/EC sensor for HM-500

HM Digital

$44.95

HM Digital Replacement TDS/EC sensor for HM-200

HM Digital Replacement TDS/EC sensor for HM-200

HM Digital

$44.95

HM Digital Replacement TDS/EC sensor for COM-100

HM Digital Replacement TDS/EC sensor for COM-100

HM Digital

$34.95

HM Digital Pen style pH/Temp meter

HM Digital Pen style pH/Temp meter

HM Digital

$49.95

HM Digital Pro PH-200 pH Temp Meter

HM Digital Pro PH-200 pH Temp Meter

HM Digital

$99.95

HM Digital Waterproof Professional Series Meter Kit

HM Digital Waterproof Professional Series Meter Kit

HM Digital

$179.95

HM Digital Hydromaster HM500 - Continuous pH TDS EC Temp Meter

HM Digital Hydromaster HM500 - Continuous pH TDS EC Temp Meter

HM Digital

$359.95

HM Digital Hydromaster HM200 Portable - pH TDS EC Temp Meter

HM Digital Hydromaster HM200 Portable - pH TDS EC Temp Meter

HM Digital

$274.95

HM Digital Hydromaster HM100 - Continuous pH TDS EC Temp Meter

HM Digital Hydromaster HM100 - Continuous pH TDS EC Temp Meter

HM Digital

$289.95

HM Digital Pro Series Dual Probe pH/TDS/EC/Temp meter

HM Digital Pro Series Dual Probe pH/TDS/EC/Temp meter

HM Digital

$174.95

HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter

HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter

HM Digital

$189.95

HM Digital Pro COM-300 pH TDS EC Temp Meter

HM Digital Pro COM-300 pH TDS EC Temp Meter

HM Digital

$159.95

Scynce LED Apogee PPFD sensor

Scynce LED Apogee PPFD sensor

Scynce LED

$895.00

BlueLab Autogrow EnviroSensor IntelliClimate CO2 Sensor

BlueLab Autogrow EnviroSensor IntelliClimate CO2 Sensor

Bluelab

$875.00