Pool sensors and probes

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

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

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

Digital water quality meter – Measures pH, TDS, EC and temperature, portable pen for drinking water, swimming pool water, aquarium and hydroponics--DTEKGAZ

3-in-1 tester for redox potential, residual chlorine and temperature for aquariums, ponds and swimming pools – Complete test set--DTEKGAZ

Intelligent 5-in-1 water quality meter: EC, TDS, salinity, SG, temperature, Bluetooth, precise and fast analysis--DTEKGAZ

Digital water quality meter – Measures pH, TDS, EC and temperature, portable pen for drinking water, swimming pool water, aquarium and hydroponics

[NEVER USED] 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

Portable 4-in-1 water quality meter (pH/EC/salinity/temperature) with backlit display for aquariums ---DTEKGAZ

3-in-1 water quality meter for precise measurement of pH, EC and temperature for aquariums, pools and gardens--DTEKGAZ

Portable water quality meter for swimming pools – Measures chlorine and pH levels – Accurate and reliable – Battery not included--DTEKGAZ

4-in-1 Bluetooth Water Quality Tester: pH value, electrical conductivity, total solids content, temperature – No battery or test kit required--DTEKGAZ

7-in-1 water quality tester for aquariums and seawater: pH value, electrical conductivity, total solids, specific gravity, salinity, redox potential--DTEKGAZ

Portable 3-in-1 water quality meter with pH and ORP thermometer for aquaculture and drinking water--DTEKGAZ

TDS tester 98306 for water quality analysis in aquaculture and horticulture – CE, FCC and RoHS certified – battery not included--DTEKGAZ

7-in-1 Water Quality Tester pH/EC/TDS/H2 ORP/Salinity for Aquariums and Marine Farming

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

7-in-1 Multifunctional Water Quality Analyzer: pH/SG/ORP/TEMP/EC salinity and TDS tester with built-in button cell battery--DTEKGAZ

[NEVER USED] Pool Salinity Tester 5 in 1 Digital Salt Water pH and Salinity Meter Pool pH and Salinity Tester Salinity Meter for Swimming Pool, Hot Tub and Swim Spa

Digital water quality tester, dissolved oxygen detector, with temperature detection

– 7-in-1 Water Quality Tester – High-Precision Wi-Fi Monitor – pH, Conductivity, Temperature – Tuya App Compatible

pH meter, 5-in-1 controller for pH/TDS/EC/ORP/temperature, water quality tester for hydroponic ponds and drinking water aquariums

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

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

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

[NEVER USED] Saltwater Salinity Tester, Swimming Pool Salt Tester, Multifunctional Water Quality Tester with Backlight for Seawater, Aquariums C-100 5-in-1 Saltwater Swimming Pool Test Kit

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

DM-2 TDS Meter Commercial Online Dual TDS Testing Hydroponics Gardening Aquarium Riffe Pool Spa Water Treatment Pure Filtration System

2-piece TDS tester, 3-in-1 TDS, EC and temperature tester, PPM tester for drinking water, digital water testing kits, no installation required

Pen-type EC meter, ABS LCD, conductivity, household ATC water quality measuring tool, portable

7-in-1 Multifunctional Water Quality Analyzer: pH/SG/ORP/TEMP/EC salinity and TDS tester with built-in button cell battery

Multifunctional water quality meter with backlight – pH, TDS, EC, salinity, temperature – No batteries or powder test kits required--DTEKGAZ

Multifunctional water quality meter with backlight – pH, TDS, EC, salinity, temperature – No batteries or powder test kits required

Portable water quality meter for swimming pools – Measures chlorine and pH levels – Accurate and reliable – Battery not included

4-in-1 Water Quality Tester: pH, TDS, EC, Temperature with Backlight, Battery-Free

3-in-1 water quality meter for precise measurement of pH, EC and temperature for aquariums, pools and gardens

4-in-1 Bluetooth Water Quality Tester: pH value, electrical conductivity, total solids content, temperature – No battery or test kit required

Portable 4-in-1 water quality meter (pH/EC/salinity/temperature) with backlit display for aquariums -

7-in-1 water quality tester for aquariums and seawater: pH value, electrical conductivity, total solids, specific gravity, salinity, redox potential

Portable 3-in-1 water quality meter with pH and ORP thermometer for aquaculture and drinking water

3-in-1 water quality tester with Bluetooth function, TDS and pH temperature measurement, backlit display, precise pH and solubility measurement

TDS tester 98306 for water quality analysis in aquaculture and horticulture – CE, FCC and RoHS certified – battery not included

2-piece TDS tester, 3-in-1 TDS, EC and temperature tester, PPM tester for drinking water, digital water testing kits, no installation required

2-piece TDS tester, 3-in-1 TDS, EC and temperature tester, PPM tester for drinking water, digital water testing kits, no installation required

Pen-type EC meter, ABS LCD, conductivity, household ATC water quality measuring tool, portable

pH & Cl2 Test 2 in 1 Electronic Digital SPA Water Quality Tester, Residual Chlorine Analysis Detector Monitor

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

Turbidity Detection Sensor Liquid Suspended Particle Turbidity Value Detection Module Kit

Turbidity Detection Sensor Liquid Suspended Particle Turbidity Value Detection Module Kit

Turbidity Detection Sensor Liquid Suspended Particle Turbidity Value Detection Module Kit

7-in-1 Water Quality Tester pH/EC/TDS/H2 ORP/Salinity for Aquariums and Marine Farming--DTEKGAZ

Water quality test pen, TDS/pH tester, EC salinity meter, pH meter, multifunctional water test pen--BIEMMEDUE