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pH & EC Measurement

Aqua Master E300 Pro Digital Substrate EC & Temperature Meter - Accurate Soil Testing for Hydroponics, Gardening, and Agriculture -45% Off
Aqua Master E300 Pro Digital Substrate EC & Temperature Meter - Accurate Soil Testing for Hydroponics, Gardening, and Agriculture
$109.97 $199.95
Aqua Master P700 Pro 2 Digital pH EC CF PPM Water Quality Tester - Professional Hydroponics, Aquariums & Pool Monitoring Tool -45% Off
Aqua Master P700 Pro 2 Digital pH EC CF PPM Water Quality Tester - Professional Hydroponics, Aquariums & Pool Monitoring Tool
$192.47 $349.95
Bluelab Replacement pH Probe for Hydroponics, Aquariums & Soil Testing | High Accuracy pH Meter Sensor for Water Quality Monitoring -45% Off
Bluelab Replacement pH Probe for Hydroponics, Aquariums & Soil Testing | High Accuracy pH Meter Sensor for Water Quality Monitoring
$68.72 $124.95
Bluelab Replacement Leap pH Probe - High Accuracy pH Sensor for Hydroponics, Aquariums & Water Testing | Perfect for Growers & Lab Use -45% Off
Bluelab Replacement Leap pH Probe - High Accuracy pH Sensor for Hydroponics, Aquariums & Water Testing | Perfect for Growers & Lab Use
$104.47 $189.95
Aqua Master P110 Pro Digital pH EC Temp Combo Meter for Hydroponics, Pools & Aquariums - Water Quality Tester for Plants, Swimming Pools & Fish Tanks -45% Off
Aqua Master P110 Pro Digital pH EC Temp Combo Meter for Hydroponics, Pools & Aquariums - Water Quality Tester for Plants, Swimming Pools & Fish Tanks
$71.47 $129.95
Aqua Master P50 Pro Digital pH and Temperature Meter - High Accuracy Water Quality Tester for Pools, Aquariums, Hydroponics, and Home Water Testing -45% Off
Aqua Master P50 Pro Digital pH and Temperature Meter - High Accuracy Water Quality Tester for Pools, Aquariums, Hydroponics, and Home Water Testing
$54.97 $99.95
Bluelab pH Pen - Digital pH Meter for Hydroponics, Aquariums & Soil Testing | Accurate Water Quality Tester for Home & Lab Use -45% Off
Bluelab pH Pen - Digital pH Meter for Hydroponics, Aquariums & Soil Testing | Accurate Water Quality Tester for Home & Lab Use
$90.72 $164.95
Aqua Master P700 Pro 2 Replacement EC, CF, PPM Water Quality Testing Probe (Electrode) for Hydroponics, Aquariums & Pool Monitoring -45% Off
Aqua Master P700 Pro 2 Replacement EC, CF, PPM Water Quality Testing Probe (Electrode) for Hydroponics, Aquariums & Pool Monitoring
$41.22 $74.95
AC Infinity pH Meter Kit - Digital pH Tester for Hydroponics, Aquariums & Soil - Accurate Water Quality Testing for Home Garden, Pool, and Laboratory Use -45% Off
AC Infinity pH Meter Kit - Digital pH Tester for Hydroponics, Aquariums & Soil - Accurate Water Quality Testing for Home Garden, Pool, and Laboratory Use
$60.47 $109.95
Aqua Master P110 Pro Replacement Probe (Electrode) - Compatible with Water Quality Meters | Perfect for Swimming Pools, Aquariums & Hydroponics Systems -45% Off
Aqua Master P110 Pro Replacement Probe (Electrode) - Compatible with Water Quality Meters | Perfect for Swimming Pools, Aquariums & Hydroponics Systems
$35.72 $64.95
Aqua Master P160 Pro Digital Water Tester - pH, EC, PPM, TDS & Temperature Meter for Hydroponics, Aquariums & Pool Water Testing -45% Off
Aqua Master P160 Pro Digital Water Tester - pH, EC, PPM, TDS & Temperature Meter for Hydroponics, Aquariums & Pool Water Testing
$90.72 $164.95
Aqua Master Replacement pH Probe Electrode with BNC Connector - High Accuracy Water Testing for Pools, Aquariums & Hydroponics -45% Off
Aqua Master Replacement pH Probe Electrode with BNC Connector - High Accuracy Water Testing for Pools, Aquariums & Hydroponics
$43.97 $79.95
Bluelab Guardian Monitor WiFi - pH, Temperature, and EC Meter for Hydroponics, Aquaponics, and Indoor Gardening | Real-Time Monitoring & Alerts for Optimal Plant Growth -45% Off
Bluelab Guardian Monitor WiFi - pH, Temperature, and EC Meter for Hydroponics, Aquaponics, and Indoor Gardening | Real-Time Monitoring & Alerts for Optimal Plant Growth
$302.47 $549.95
Aqua Master S300 Pro 2-in-1 Substrate pH & Temperature Meter for Hydroponics, Aquariums, and Soil Testing - Digital Water Quality Tester for Plants, Fish Tanks, and Gardening -45% Off
Aqua Master S300 Pro 2-in-1 Substrate pH & Temperature Meter for Hydroponics, Aquariums, and Soil Testing - Digital Water Quality Tester for Plants, Fish Tanks, and Gardening
$82.47 $149.95
AC Infinity All In One Hydroponic Meter PRO Kit - pH, EC, TDS, Temperature Tester for Indoor Plants, Hydroponics, Aquaponics & Soil Gardening | Perfect for Grow Tents, Greenhouses & Home Gardens -45% Off
AC Infinity All In One Hydroponic Meter PRO Kit - pH, EC, TDS, Temperature Tester for Indoor Plants, Hydroponics, Aquaponics & Soil Gardening | Perfect for Grow Tents, Greenhouses & Home Gardens
$142.44 $258.99
Bluelab Combo Meter PLUS - Digital pH, EC, and Temperature Tester for Hydroponics, Aquariums & Gardening | Accurate Water Quality Monitoring Tool -45% Off
Bluelab Combo Meter PLUS - Digital pH, EC, and Temperature Tester for Hydroponics, Aquariums & Gardening | Accurate Water Quality Monitoring Tool
$247.47 $449.95
AC Infinity pH Meter PRO Kit - Digital pH Tester for Hydroponics, Aquariums & Soil - High Accuracy Water Quality Testing for Home, Garden & Lab Use -45% Off
AC Infinity pH Meter PRO Kit - Digital pH Tester for Hydroponics, Aquariums & Soil - High Accuracy Water Quality Testing for Home, Garden & Lab Use
$76.44 $138.99
Aqua Master P50 Pro Replacement Probe (Electrode) - High Performance Sensor for Water Quality Testing in Pools, Spas & Hydroponics -45% Off
Aqua Master P50 Pro Replacement Probe (Electrode) - High Performance Sensor for Water Quality Testing in Pools, Spas & Hydroponics
$24.72 $44.95
AC Infinity Replacement pH Probe for pH Meter PRO Kit - Accurate pH Testing for Hydroponics, Aquariums & Home Brewing -45% Off
AC Infinity Replacement pH Probe for pH Meter PRO Kit - Accurate pH Testing for Hydroponics, Aquariums & Home Brewing
$28.04 $50.99
Aqua Master E50 Pro Replacement Probe (Electrode) - High Accuracy pH Sensor for Water Testing, Pools, Aquariums & Hydroponics -45% Off
Aqua Master E50 Pro Replacement Probe (Electrode) - High Accuracy pH Sensor for Water Testing, Pools, Aquariums & Hydroponics
$16.47 $29.95
Bluelab Truncheon EC+TDS Nutrient Meter - Digital Water Tester for Hydroponics, Aquariums & Soil - Measure Electrical Conductivity & Total Dissolved Solids for Healthy Plants -45% Off
Bluelab Truncheon EC+TDS Nutrient Meter - Digital Water Tester for Hydroponics, Aquariums & Soil - Measure Electrical Conductivity & Total Dissolved Solids for Healthy Plants
$98.97 $179.95
AC Infinity Replacement Probe for Hydroponic Meter PRO Kit - Compatible with AC Infinity Hydroponic Systems - Perfect for Indoor Gardening, Greenhouse Monitoring, and Precision Plant Care -45% Off
AC Infinity Replacement Probe for Hydroponic Meter PRO Kit - Compatible with AC Infinity Hydroponic Systems - Perfect for Indoor Gardening, Greenhouse Monitoring, and Precision Plant Care
$59.94 $108.99
Bluelab Conductivity Pen for Hydroponics - Digital EC/PPM Meter for Water Quality Testing - Ideal for Hydroponic Systems, Aquariums & Indoor Gardening -45% Off
Bluelab Conductivity Pen for Hydroponics - Digital EC/PPM Meter for Water Quality Testing - Ideal for Hydroponic Systems, Aquariums & Indoor Gardening
$71.47 $129.95
Aqua Master E50 Pro Digital EC & Temperature Meter - Accurate Water Quality Tester for Hydroponics, Aquariums, and Pools -45% Off
Aqua Master E50 Pro Digital EC & Temperature Meter - Accurate Water Quality Tester for Hydroponics, Aquariums, and Pools
$35.72 $64.95
Aqua Master E60 Pro Digital Conductivity Meter - High Precision Water Quality Tester for Pools, Aquariums & Hydroponics | Portable EC Meter for Home, Lab & Industrial Use -45% Off
Aqua Master E60 Pro Digital Conductivity Meter - High Precision Water Quality Tester for Pools, Aquariums & Hydroponics | Portable EC Meter for Home, Lab & Industrial Use
$54.97 $99.95
Aqua Master H600 Pro Digital Water Quality Tester - Portable Handheld Meter for pH, TDS, EC, Temp - Perfect for Home, Pool, Aquarium, and Hydroponics Testing -45% Off
Aqua Master H600 Pro Digital Water Quality Tester - Portable Handheld Meter for pH, TDS, EC, Temp - Perfect for Home, Pool, Aquarium, and Hydroponics Testing
$186.97 $339.95
Aqua Master P160 Pro Replacement Probe - High Accuracy Water Quality Testing Sensor for Pools, Spas & Aquariums | Compatible with P160 Series | Easy Installation & Durable Design -45% Off
Aqua Master P160 Pro Replacement Probe - High Accuracy Water Quality Testing Sensor for Pools, Spas & Aquariums | Compatible with P160 Series | Easy Installation & Durable Design
$32.97 $59.95
Bluelab OnePen pH EC and Temperature Meter - Digital Water Tester for Hydroponics, Aquariums, and Indoor Gardening -45% Off
Bluelab OnePen pH EC and Temperature Meter - Digital Water Tester for Hydroponics, Aquariums, and Indoor Gardening
$186.97 $339.95
AC Infinity Peristaltic Pump 2-Outlet Dosing Kit - 210ml/min Flow Rate for Hydroponics, Aquariums & Nutrient Dosing Systems | Perfect for Automated Watering & Fertilizer Distribution -45% Off
AC Infinity Peristaltic Pump 2-Outlet Dosing Kit - 210ml/min Flow Rate for Hydroponics, Aquariums & Nutrient Dosing Systems | Perfect for Automated Watering & Fertilizer Distribution
$90.72 $164.95