Meters and Testing Supplies

Meters and Testing Supplies

70 products

Autopilot CO2 Monitor & Controller w/15' Remote Sensor Autopilot CO2 Monitor & Controller w/15' Remote Sensor
Autopilot

Autopilot CO2 Monitor & Controller w/15' Remote Sensor

$274.95
Autopilot Cooling Thermostat Autopilot Cooling Thermostat
Autopilot

Autopilot Cooling Thermostat

$39.95
Autopilot Advanced 24hr Recycling Timer Autopilot Advanced 24hr Recycling Timer
Autopilot

Autopilot Advanced 24hr Recycling Timer

$49.95
Autopilot 24 hr Day & Night Cooling/Heating Thermostat Autopilot 24 hr Day & Night Cooling/Heating Thermostat
Autopilot

Autopilot 24 hr Day & Night Cooling/Heating Thermostat

$49.95
Autopilot Power Strip with 8 Outlets & Timer Autopilot Power Strip with 8 Outlets & Timer
Autopilot

Autopilot Power Strip with 8 Outlets & Timer

$27.95
TrolMaster Aqua-X Irrigation Control System TrolMaster Aqua-X Irrigation Control System
TrolMaster

TrolMaster Aqua-X Irrigation Control System

$99.99
AC Infinity CLOUDCOM - Smart Thermo-Hygrometers AC Infinity CLOUDCOM - Smart Thermo-Hygrometers
AC Infinity

AC Infinity CLOUDCOM - Smart Thermo-Hygrometers

$19.99 - $24.99
AC Infinity CLOUDCOM - Mini Smart Thermo-Hygrometers AC Infinity CLOUDCOM - Mini Smart Thermo-Hygrometers
AC Infinity

AC Infinity CLOUDCOM - Mini Smart Thermo-Hygrometers

$15.99 - $21.99
GroLine Electrode Storage Solution HI70300-012 GroLine Electrode Storage Solution HI70300-012
Hanna

GroLine Electrode Storage Solution HI70300-012

$2.00 - $49.99
GroLine Soil PH Tester HI981030 GroLine Soil PH Tester HI981030
Hanna

GroLine Soil PH Tester HI981030

$139.99
GroLine Soil Test Direct Soil Conductivity Tester GroLine Soil Test Direct Soil Conductivity Tester
Hanna

GroLine Soil Test Direct Soil Conductivity Tester

$161.95
HM Digital Pen style TDS/EC/Temp meter
HM Digital

HM Digital Pen style TDS/EC/Temp meter

$39.95
Bluelab PPM Pen
Bluelab

Bluelab PPM Pen

$94.95
Bluelab pH Pen
Bluelab

Bluelab pH Pen

$99.95
Quick Calibration Solution for GroLine pH and EC Meters Quick Calibration Solution for GroLine pH and EC Meters
Hanna

Quick Calibration Solution for GroLine pH and EC Meters

$1.75 - $59.75
GroLine PH/EC/TDS Meter H9814 GroLine PH/EC/TDS Meter H9814
Hanna

GroLine PH/EC/TDS Meter H9814

$334.95
GroLine Waterproof Hydroponic pH Tester HI98118 GroLine Waterproof Hydroponic pH Tester HI98118
Hanna

GroLine Waterproof Hydroponic pH Tester HI98118

$115.95
GroLine Hydroponics pH Tester HI98115 GroLine Hydroponics pH Tester HI98115
Hanna

GroLine Hydroponics pH Tester HI98115

$63.49
GroLine Waterproof EC/TDS (ppm) Tester GroLine Waterproof EC/TDS (ppm) Tester
Hanna

GroLine Waterproof EC/TDS (ppm) Tester

$110.95
Soil Test Direct Soil Conductivity Tester Soil Test Direct Soil Conductivity Tester
Hanna

Soil Test Direct Soil Conductivity Tester

$152.95
GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester combo meter HI98131 GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester combo meter HI98131
Hanna

GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester combo meter HI98131

$235.95
GroLine General Purpose Cleaning Solution GroLine General Purpose Cleaning Solution
Hanna

GroLine General Purpose Cleaning Solution

$1.95 - $50.00
GroLine Hydroponics pH Tester HI98115 GroLine Hydroponics pH Tester HI98115

GroLine Hydroponics pH Tester HI98115

$59.95
Checker pH Tester with 0.1 pH Resolution Checker pH Tester with 0.1 pH Resolution
Hanna

Checker pH Tester with 0.1 pH Resolution

$44.95