Pool sensors and probes

pH Meter Tester, 4-in-1 Electronic Pool pH Tester, pH, TDS, EC and Temperature Meter, Water Quality Tester with LCD Screen and Accurate Readings, for Swimming Pools and Aquariums

pH acidity meter water quality detector pH tester value pen white TDS pen + yellow pH meter

PH Meter, PH Meter Tester 5-in-1 PH/TDS/EC/ORP/Temp Meter, Water Quality Monitoring Tester for Swimming Pools, Hydroponics, Drinking Water, Aquariums

Water Quality Tester Electrolyzer-Portable Water Impurity Monitor Water Electrolyzer Machine Test Meter

Water Electrolyzer - Portable Water Quality Tester, Lightweight Water Impurity Monitor, Easy-to-Use Electrolyzer Test Monitor

3 in 1 Portable Digital EC PH Temperature Tester Water Quality Tester Purity Test Pen

Swimming pool salinity tester, 5-in-1 digital seawater salinity tester, IP67 waterproof test kit

C-100 5-in-1 Salinity TDS EC Multifunctional Seawater Tester Water Quality Tester with Backlight

5-in-1 Water Quality Tester – pH, TDS, EC, Salinity, Temperature – Backlit LCD Screen – For Swimming Pools and Aquariums

in 1 pH Meter, Water Quality Tester for pH/TDS/EC/Temperature, IP67 Digital pH Meter with Automatic Calibration and Backlit LCD for Hydroponics, Garden, Pool, Aquarium

5-in-1 Digital Water Tester – Measures pH, TDS, EC, Salinity, Temperature – IP67 Waterproof for Swimming Pools, Aquariums, Hydroponics – 5 IN WATER

5-in-1 Electronic pH Meter Tester, Measures pH & TDS & EC Salinity & Temperature Water Quality Tester, LCD Screen and Reading Accuracy, for Drinking Water, Aquariums, Swimming Pools etc.

Electronic pH tester, TDS, pH, EC, temperature, 4-in-1 kit for swimming pool, aquarium, reverse osmosis system, laboratory

C-100 5-in-1 Salinity TDS EC Salt Water Tester Multifunctional Water Quality Tester with Backlight

Electronic PH Tester, 5 in 1 Swimming Pool Water Tester with Backlight, PH/TDS/EC/Salinity/Temperature with ATC, High Precision PH Meter with Resolution 0.01 for Drinking Water, Aquarium, Spas

PH Meter, PH/TDS/EC/Temperature Conductivity Meter, High Accuracy Automatic Calibration, Digital for Pool Drinking Water Aquariums

Aiperq pH Meter, 5-in-1 pH/TDS/EC/ORP/Temperature Tester, Water Quality Monitor for Swimming Pools, Hydroponics, Drinking Water, Aquariums

Electronic pool water quality tester, measuring pH and chlorine levels, with a 13cm cable.

Water quality tester, portable digital monitor, pH water quality tester, chlorine pool testing kit (white)

CL2 Digital Chlorine and pH Tester – Precise Measurement with Probe – For Swimming Pools and Spas – Multifunction LCD Display

Portable pH meter, water quality meter, chlorine meter, swimming pool, spa, water quality control, suitable for measuring the pH value of drinking water and aquarium water in swimming pools.

Pool Salinity Tester pH and Salt Water Salinity Meter 7-in-1 Digital Tester Pool pH and Salinity Tester

5-in-1 High Precision Salt Water Salinity Tester, IP67 Waterproof Test Kit YMYNY

Electronic pH and chlorine water quality tester for swimming pools, 13 cm cable

Electronic pH meter, 5 in 1 pH tester for swimming pools with backlight, pH/TDS/EC/salinity/temperature with ATC, high precision pH meter with a resolution of 0.01, for drinking water, aquariums and s

PH Meter, 5 in 1 PH/TDS/EC/Salinity/Temperature Meter, Water Quality Monitor Tester for Pools, Hydroponics, Drinking Water, Aquariums NPTERBL

Portable Data Display Backlit Garden Water Tester, Water Quality Tester, Water Quality Analyzer, for Swimming Pools Drinking Water

Inbagno – Testeur électronique de qualité d'eau pour piscine – Mesure pH et chlore – Câble 130 mm – Compatible avec piscines et SPA familiaux

pH Meter Tester, 3-in-1 Electronic Pool pH Tester, TDS Meter, Temperature Tester, Water Quality Tester with LCD Screen and Accurate Readings, for Swimming Pools and Aquariums

5-in-1 Digital Pool Salinity Tester, pH and Saltwater Meter, pH and Salinity Meter for Swimming Pools, Hot Tubs and Swim Spas

Digital salinity tester, high-precision salinity measuring pen, salinometer for drinking water

Water tester - a highly accurate and reliable portable water quality analysis tool for testing drinking water or swimming pools

PenType Digital Salinity Tester, Salinity Meter for Saltwater and Seawater Swimming Pools

2-in-1 Water Quality Tester, Digital pH and Chlorine Tester, Portable Cl2 Tester with Large Screen for Swimming Pool and Spa Water Quality Analyzer

Automatic pH Tester, Chlorine pH Meter, Digital Water Analyzer, Specially for Swimming Pools, Spas, and Aquariums

Portable water quality analyzer, electronic water quality tester for swimming pools, measuring pH and chlorine levels

Combo Digital PH and TDS Meter, 0.05 ph pH Tester with High Accuracy +/-2% Reading Accuracy TDS Tester, Water Quality Tester for Drinking Water/Pool/Aquarium/Swimming Pools (Brass

Pool Salinity Tester, 5-in-1 Digital Seawater Salinity Tester, IP67 Waterproof Test Kit YMYNY

Water Chlorine and pH Meter Test Kit, Portable Digital Water Quality Monitor, Electronic Water Quality Analyzer Test Kit for Pools and Hot Tubs

Electronic 8-in-1 Pool pH Meter: Multifunctional tester for pH/TDS/Salt/SG/ORP/EC/Temperature/H₂ - Accurate, waterproof and ready to use.

Digital PH Meter, ATC Water Quality Tester with 0-14 PH Measuring Range, Home Use PH Tester,

4-in-1 pH Meter Water – pH/TDS/EC/Temperature Meter for Aquarium, Pool, Drinking Water, Swimming Pool

Electronic pH Tester, 5-in-1 Pool Water Quality Tester with Backlight, PH/TDS/EC/Salinity/Temperature with ATC, 0.01 Resolution for Drinking Water, Aquarium, Spa YMYNY

Electromagnetic Radiation Detector EMF Counter Digital LCD Dosimeter Radiation Tester GM3120

Ulisem Water Quality Tester, 4-in-1 pH Meter and TDS&EC Temperature Meter, Meter with LCD Screen, High Precision 0.01 Resolution, for Drinking Water, Swimming Pools, Aquariums, Hydroponics (cannot

Electronic pool water tester for pH and chlorine content, 13 cm cable YMYNY

Portable pH and Chlorine Level Tester, 2-in-1 Water Quality Analysis Instrument

Ulisem Digital Salinity Tester for Saltwater Pools and Ponds

ORP H2 PH Temp Meter High Sensitivity Backlit LCD Hydrogen Water Tester for Swimming Pool Fish Tank Drinking Water

Electronic pH Tester, 5-in-1 Pool Water Tester with Backlight, pH/TDS/EC/Salinity/Temperature with ATC, High Precision pH Meter with 0.01 Resolution, for Drinking Water, Aquarium, Spas

Multifunction LCD Digital Tester, PC-102B CL2 - pH and Chlorine Tester for Swimming Pools and Spas, Water Quality Analyzer with Probe, Digital pH Tester

5-in-1 pH Meter – Water Quality Tester for Swimming Pools, Aquariums, Hydroponics – Titanium Probe, IP67 Waterproof