Pool sensors and probes

Water Quality Tester, Swimming Pool Water Tester Digital Water Quality Tester Hydrogen Tester Pen Highly Sensitive Water Quality Tester for Aquatic Plants Water

Tester of chlore PC 102 2 in 1 for pool, Test of level CL2 portable, monitor of quality of water for Spa, analyseur

8-in-1 Electronic pH Meter for Swimming Pools, pH/TDS/SALT/SG/ORP/EC/TEMP/H2 Tester, Water Quality Tester for Swimming Pools, Spas, Aquariums, Drinking Water, and Hydroponics

High-Precision Water Quality Tester, Water Purity Tester with Aluminum Iron Bar, TDS Electrolyzer Device, EU Plug 220V

ORP-986 Portable Pen Type ORP Meter Water Quality Tester Analyzer Experiment Detection Monitor 6.9 x 1.3 x 0.7 inch Used in Industry and Experiment (Blue Backlight), pH, Conductivity and Tds

Tester of Water Digital TDS 5 in 1, Meter of Sel PH TDS EC with Temperature, Tester of quality of the Water Portable Lightweight for Water Potable, Aquariums

PH Meter Electronic 5 in 1 with TDS EC Salinite Temperature, ph Tester Multi-parameters waterproof IP67 of High precision, Tester ph Salinite Pool Water with cal compensation automatic

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

2-in-1 Chlorine and pH Tester, Portable Water Analyzer for Swimming Pools, Spas and Aquariums

Swimming pool water quality tester – Measures chlorine, TDS and pH value – Accurate and reliable--DTEKGAZ

Tester water digital 5 in 1 Measures ph, TDS, EC, salinite, temperature Sealing IP67 for pool, aquarium, hydroponie - EAU 5 EN

Tester of temperature of salinite PH, high precision, waterproof IP65, meter digital Portable of quality of water, for home and hotel

Tester of temperature of salinite PH, high precision, waterproof IP65, meter digital Portable of quality of water, for home and hotel

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

Swimming pool water quality tester – Measures chlorine, TDS and pH value – Accurate and reliable--BIEMMEDUE

Swimming pool water quality tester – Measures chlorine, TDS and pH value – Accurate and reliable

Ulisem Digital Salinity Tester for Saltwater Pools and Ponds

Qualité Eau Testeur,Portable Numérique Moniteur,Ph Eau Testeur Analyse Chlore Piscine Kit Test

Water Quality Tester, Water Quality Tester, Automatic pH Tester for Residual Chlorine, pH Water Tester, Chlorine Analysis for Swimming Pools, Test Kit

Combined digital pH meter and TDS, 0.05ph pH tester with high accuracy +/- 2% reading accuracy TDS tester, water quality tester for drinking water / swimming pool / aquarium / swimming pools (brewing)

Combined digital pH meter and TDS, 0.05ph pH tester with high accuracy +/- 2% reading accuracy TDS tester, water quality tester for drinking water / swimming pool / aquarium / swimming pools （White） S

Ulisem Digital Salinity Tester for Saltwater Pools and Ponds

Portable digital salinity meter for kitchen, food and aquarium – Accurate salinity measurement in seawater and brackish water

pH tester, LCD digital water quality meter for aquariums and swimming pools (EU plug 220V)

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

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

Digital TDS Tester Portable Pen + PH Paper Water Quality Temperature Purity Meter Temp PPM Tester Water Thermometer 4 Display Modes

4-in-1 Electronic pH Meter, Water Quality Tester pH/TDS/EC/Temperature, Measurement Accuracy 0-14 pH, 2% Reading Accuracy, Set 0-19999 PPM, for Swimming Pool, Aquarium, Drinking Water - LIAIKI

Portable Swimming Pool Water Tester PH Chlorine Detector Water Quality Test Monitor

Portable digital chlorine tester, water quality tester, swimming pool water quality monitor

Portable digital salinity meter for kitchen, food and aquarium – Accurate salinity measurement in seawater and brackish water--DTEKGAZ

4 En 1 Testeur Qualite De L'Eau Ph / Ec / Tds / Temperature Ip55 Metre Arret Automatique Etanche Retro-Eclairage Affichage Testeur Blanc Ph-686

High-Precision Water Quality Tester, Water Purity Tester with Aluminum Iron Bar, TDS Electrolyzer Device, EU Plug 220V

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

Electronic pool water quality tester for pH and chlorine levels, 13 cm cable

5-in-1 digital water quality tester with TDS/EC/pH/salinity/temperatureHigh quality. An ideal choice for families.

7-in-1 pH meter with temperature, salinity, TDS, and EC high-precision, waterproof, automatic, multi-function tester ORP and negative potential measurements pH meter quality test pen

3-in-1 TDS+EC+Thermometer Tester and pH Meter with Automatic Calibration Function, Accuracy Water Quality Monitor Portable Pen for Drinking Water, Aquariums, Pools and Spas MUMU

Electronic PH Tester, 10 in 1 Swimming Pool Water Tester with Backlight, PH/TDS/SG/EC/ORP/H2/Salinity/Temperature/Fertility of nutrient solution/㏁ Resistivity with ATC, 0.01 Resolution High Accuracy P

2-in-1 pH and Chlorine(Cl2) tester for pools, spas and drinking water: Accurate, portable, easy to calibrate, including case and solutions.

Portable digital salinity meter for kitchen, food and aquarium – Accurate salinity measurement in seawater and brackish water--BIEMMEDUE

Kcvv – 5-in-1 Digital pH Tester – Backlit LCD Screen – Measures pH/TDS/EC/Temperature/Salinity – For Drinking Water/Aquariums/Swimming Pools – 5-in-1 Tester

New Battery-Free Analyzer Salinometer (Random Tip Color)

Pool Salt Tester and PH Meter, Digital Salinity Meter and PH Tester for Swimming Pool Saltwater and Drinking Water, 5 in 1 Salinity PH Temp EC and TDS Meter Pool Spas, High Accuracy

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

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

Ouylaf pH-mètre électronique 5-en-1 Teste pH/TDS/EC/Température/Salinité Écran LCD rétro-éclairé Étanchéité IP67 pour aquariums/piscines - 5-en-1Testeur

Portable TDS Tester with Illuminated LCD Display, Automatic Temperature Compensation for Water

4 in 1 Water Quality Tester PH/ORP/Hydrogen Rich/Temperature IP67 Protection ABS Material Black/White

Testeur D'Eau Numérique TDS 5 en 1, Compteur de Sel PH TDS EC avec Température, Testeur de qualité de L'Eau Portable Léger pour Eau Potable, Aquariums

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