Pool sensors and probes

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

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

High-Precision Digital Salinity Tester with Temperature Compensation and Large LCD Screen for Water, EC, Temperature and Density

Multifunctional EC SG TEMP salinity meter with white illumination – precise and reliable for aquariums and swimming pools – battery not included--BIEMMEDUE

High-Precision Digital Salinity Tester with Temperature Compensation and Large LCD Screen for Water, EC, Temperature and Density

ORP-169F Water Quality Tester ORP Negative Potential Portable Test Pen

5-in-1 Electronic pH Meter Tester, pH Meter with Backlit LCD Screen, Water Quality Tester for Testing pH/TDS/EC/Temperature/Salinity, for Drinking Water/Aquariums/Swimming Pools

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

High-Precision Digital Salinity Tester with Temperature Compensation and Large LCD Screen for Water, EC, Temperature and Density

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

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

X51 5-in-1 Portable Pen-Shaped Water Quality Tester: Measures salinity, pH, TDS, and electrical conductivity. High-precision, multifunctional water quality tester.--BIEMMEDUE

ORP-169F Water Quality Tester ORP Negative Potential Portable Test Pen

Portable water test pen for measuring the conductivity and hardness of natural water at home ---BIEMMEDUE

5-in-1 Electronic pH Meter Tester, pH Meter with Backlit LCD Screen, Water Quality Tester for Testing pH/TDS/EC/Temperature/Salinity, for Drinking Water/Aquariums/Swimming Pools

Hydrogen concentration meter for water, water quality measuring pen, precise and reliable, ideal for determining the hydrogen content in water--BIEMMEDUE

Water quality meter (pH value/electrical conductivity/total solids content/salinity/density/temperature) with white illumination – precise and reliable for easy monitoring – battery not included--BIEM

5-in-1 Aquarium Water Tester: pH value, TDS, EC value and salinity – precise and reliable for aquaculture and hydroponics--BIEMMEDUE

5-in-1 Electronic pH Meter Tester, pH Meter with Backlit LCD Screen, Water Quality Tester for Testing pH/TDS/EC/Temperature/Salinity, for Drinking Water/Aquariums/Swimming Pools

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

Electronic precision seawater tester – Measures salinity, pH, TDS, EC, ORP with backlit display and waterproof function – Batteries included--BIEMMEDUE

3-in-1 Water Quality Tester: TDS, pH, TEMP - Accurate and reliable for quick analyses without batteries or reagents--BIEMMEDUE

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

Water quality tester, ORP meter with digital display, backlit control, for swimming pools, spas, hydroponic laboratories

Water quality tester, ORP meter with digital display, backlit control, for swimming pools, spas, hydroponic laboratories

Water quality tester, ORP meter with digital display, backlit control, for swimming pools, spas, hydroponic laboratories

5-in-1 Water Quality Tester: pH, Salt, Total Dissolved Solids, EC, Temperature. Multifunctional Mariculture Tester for Aquarium and Aquaculture Drinking Water.

5-in-1 Water Quality Tester: pH, Salt, Total Dissolved Solids, EC, Temperature. Multifunctional Mariculture Tester for Aquarium and Aquaculture Drinking Water.

4-in-1 Chlorine Test Pen, Water Content Measurement, Pool Instrument, ORP H2 Temperature Tester

4-in-1 Chlorine Test Pen, Water Content Measurement, Pool Instrument, ORP H2 Temperature Tester

4-in-1 Chlorine Test Pen, Water Content Measurement, Pool Instrument, ORP H2 Temperature Tester

5-in-1 Digital Water Quality Tester, Smart pH BT/EC/TDS/CF/Temp for Drinking Water in a Hydroponic Aquarium

Water quality analyzer for swimming pools and whirlpools – Digital chlorine and pH tester – Large display – Ready to use immediately--BIEMMEDUE

4-in-1 ORP H2 pH Water Quality Tester for Swimming Pools, Aquariums and Drinking Water--BIEMMEDUE

Ph Tester Swimming Pool Checker Kit Water Quality Monitor Pc101 Meter Tester Measuring Meter Swim Pool for Test Kit Comp Water Test Kits

Ph Tester Swimming Pool Checker Kit Water Quality Monitor Pc101 Meter Tester Measuring Meter Swim Pool for Test Kit Comp Water Test Kits

Ph Tester Swimming Pool Checker Kit Water Quality Monitor Pc101 Meter Tester Measuring Meter Swim Pool for Test Kit Comp Water Test Kits

Automatic residual chlorine and pH tester for swimming pools, whirlpools and aquariums – Professional, precise digital water quality analyzer--BIEMMEDUE

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

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

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

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

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

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

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

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

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

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

4-in-1 water quality tester: pH/EC/TDS/temperature for precise measurements – Ideal for aquariums and hydroponics--BIEMMEDUE

3-in-1 water quality tester: pH value, EC value, temperature, multifunctional, powder and battery not included--BIEMMEDUE

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