Pool sensors and probes

500+ products

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

~~£52.38~~

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Fuel pressure sensor compatible with Peugeot Citroën 1920GW 9658227880 - exclusively supplied with quality assurance. (1/4)

Fuel pressure sensor compatible with Peugeot Citroën 1920GW 9658227880 - exclusively supplied with quality assurance. (2/4)

Fuel pressure sensor compatible with Peugeot Citroën 1920GW 9658227880 - exclusively supplied with quality assurance.

~~£42.51~~

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Portable ORP water quality meter with brush-shaped nozzle for measuring redox potential – battery-free--BIEMMEDUE (1/3)

Portable ORP water quality meter with brush-shaped nozzle for measuring redox potential – battery-free--BIEMMEDUE

~~£56.00~~

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Multi-parameter Water Quality Tester S.G PH EC SALT ORP TDS CF TEMP 8 IN 1 ONLINE REFILLABLE SOURCE FOR AQUARIUM EU PLIG 230V (1/5)

Multi-parameter Water Quality Tester S.G PH EC SALT ORP TDS CF TEMP 8 IN 1 ONLINE REFILLABLE SOURCE FOR AQUARIUM EU PLIG 230V (2/5)

Multi-parameter Water Quality Tester S.G PH EC SALT ORP TDS CF TEMP 8 IN 1 ONLINE REFILLABLE SOURCE FOR AQUARIUM EU PLIG 230V (3/5)

Multi-parameter Water Quality Tester S.G PH EC SALT ORP TDS CF TEMP 8 IN 1 ONLINE REFILLABLE SOURCE FOR AQUARIUM EU PLIG 230V

~~£146.06~~

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5-in-1 Digital Salinity Meter for Swimming Pools and Seawater, IP67 Waterproof – Measures Salinity, pH, Chlorine, Temperature, TDS, LCD Display, Easy Calibration, Portable--DTEKGAZ (1/4)

5-in-1 Digital Salinity Meter for Swimming Pools and Seawater, IP67 Waterproof – Measures Salinity, pH, Chlorine, Temperature, TDS, LCD Display, Easy Calibration, Portable--DTEKGAZ

~~£41.66~~

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5-in-1 Digital Salinity Meter for Swimming Pools and Seawater, IP67 Waterproof – Measures Salinity, pH, Chlorine, Temperature, TDS, LCD Display, Easy Calibration, Portable--BIEMMEDUE

~~£52.01~~

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

~~£42.03~~

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pH & Cl2 Test 2 in 1 Electronic Digital SPA Water Quality Tester, Residual Chlorine Analysis Detector Monitor (1/5)

pH & Cl2 Test 2 in 1 Electronic Digital SPA Water Quality Tester, Residual Chlorine Analysis Detector Monitor (2/5)

pH & Cl2 Test 2 in 1 Electronic Digital SPA Water Quality Tester, Residual Chlorine Analysis Detector Monitor (3/5)

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

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5-in-1 Water Quality Tester: pH, Salt, Total Dissolved Solids, EC, Temperature. Multifunctional Mariculture Tester for Aquarium and Aquaculture Drinking Water. (1/4)

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

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

~~£36.18~~

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15298924+ 15034985 +15034986 Front door handles and lock cylinders are compatible with 2001-2006 Chevrolet models. (1/4)

15298924+ 15034985 +15034986 Front door handles and lock cylinders are compatible with 2001-2006 Chevrolet models. (2/4)

15298924+ 15034985 +15034986 Front door handles and lock cylinders are compatible with 2001-2006 Chevrolet models.

~~£53.01~~

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Ph Tester Swimming Pool Checker Kit Water Quality Monitor Pc101 Meter Tester Measuring Meter Swim Pool for Test Kit Comp Water Test Kits (1/5)

Ph Tester Swimming Pool Checker Kit Water Quality Monitor Pc101 Meter Tester Measuring Meter Swim Pool for Test Kit Comp Water Test Kits (2/5)

Ph Tester Swimming Pool Checker Kit Water Quality Monitor Pc101 Meter Tester Measuring Meter Swim Pool for Test Kit Comp Water Test Kits (3/5)

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

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Automatic residual chlorine and pH tester for swimming pools, whirlpools and aquariums – Professional, precise digital water quality analyzer--DTEKGAZ (1/4)

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

~~£54.50~~

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3-in-1 tester for redox potential, residual chlorine and temperature for aquariums, ponds and swimming pools – Complete test set (1/5)

3-in-1 tester for redox potential, residual chlorine and temperature for aquariums, ponds and swimming pools – Complete test set (2/5)

3-in-1 tester for redox potential, residual chlorine and temperature for aquariums, ponds and swimming pools – Complete test set (3/5)

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

~~£46.75~~

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Pen-type EC meter, ABS LCD, conductivity, household ATC water quality measuring tool, portable (1/5)

Pen-type EC meter, ABS LCD, conductivity, household ATC water quality measuring tool, portable (2/5)

Pen-type EC meter, ABS LCD, conductivity, household ATC water quality measuring tool, portable (3/5)

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

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Portable water test pen for measuring the conductivity and hardness of natural water at home ---BIEMMEDUE (1/5)

Portable water test pen for measuring the conductivity and hardness of natural water at home ---BIEMMEDUE (2/5)

Portable water test pen for measuring the conductivity and hardness of natural water at home ---BIEMMEDUE (3/5)

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

~~£53.19~~

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

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High-Precision Digital Salinity Tester with Temperature Compensation and Large LCD Screen for Water, EC, Temperature and Density (1/4)

High-Precision Digital Salinity Tester with Temperature Compensation and Large LCD Screen for Water, EC, Temperature and Density (2/4)

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

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Multifunctional EC SG TEMP salinity meter with white illumination – precise and reliable for aquariums and swimming pools – battery not included--DTEKGAZ (1/5)

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

~~£43.15~~

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Water Quality Tester, Electronic pH Meter, Portable Chlorine Meter, High-Precision pH Meter for Drinking Water, Hydroponics, Aquariums, and Drinking Water (1/4)

Water Quality Tester, Electronic pH Meter, Portable Chlorine Meter, High-Precision pH Meter for Drinking Water, Hydroponics, Aquariums, and Drinking Water

~~£39.30~~

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Chlorine and pH-Cl2 tester with probe, water quality analyzer for swimming pools, replacement accessories for pool pH testers, chlorine tester, electronic pH and chlorine tester (1/5)

Chlorine and pH-Cl2 tester with probe, water quality analyzer for swimming pools, replacement accessories for pool pH testers, chlorine tester, electronic pH and chlorine tester

~~£39.30~~

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Electronic pH Meter, 5-in-1 Pool Water Tester with Backlight, pH/TDS/EC/Salinity/Temperature with ATC, High Precision pH Meter (1/5)

Electronic pH Meter, 5-in-1 Pool Water Tester with Backlight, pH/TDS/EC/Salinity/Temperature with ATC, High Precision pH Meter (2/5)

Electronic pH Meter, 5-in-1 Pool Water Tester with Backlight, pH/TDS/EC/Salinity/Temperature with ATC, High Precision pH Meter (3/5)

Electronic pH Meter, 5-in-1 Pool Water Tester with Backlight, pH/TDS/EC/Salinity/Temperature with ATC, High Precision pH Meter

~~£40.30~~

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Digital water quality controller, temperature, pH, salinity, with wireless app, WIFI function, EU plug, 230V (1/4)

Digital water quality controller, temperature, pH, salinity, with wireless app, WIFI function, EU plug, 230V (2/4)

Digital water quality controller, temperature, pH, salinity, with wireless app, WIFI function, EU plug, 230V

~~£171.26~~

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

5-in-1 Aquarium Water Tester: pH value, TDS, EC value and salinity – precise and reliable for aquaculture and hydroponics--BIEMMEDUE (2/5)

5-in-1 Aquarium Water Tester: pH value, TDS, EC value and salinity – precise and reliable for aquaculture and hydroponics--BIEMMEDUE (3/5)

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

~~£57.14~~

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Water quality analyzer for swimming pools and whirlpools – Digital chlorine and pH tester – Large display – Ready to use immediately (1/4)

Water quality analyzer for swimming pools and whirlpools – Digital chlorine and pH tester – Large display – Ready to use immediately (2/4)

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

~~£41.10~~

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Hydrogen concentration meter for water, water quality measuring pen, precise and reliable, ideal for determining the hydrogen content in water--BIEMMEDUE (1/5)

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

~~£55.13~~

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Swimming Pool Water Analysis Digital Water Meter Test, Electronic Water Quality Analysis Meter for Swimming Pools and Spas, Water Quality Monitor Analysis - RAPANDA (1/5)

Swimming Pool Water Analysis Digital Water Meter Test, Electronic Water Quality Analysis Meter for Swimming Pools and Spas, Water Quality Monitor Analysis - RAPANDA

~~£38.30~~

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

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2-piece TDS tester, 3-in-1 TDS, EC and temperature tester, PPM tester for drinking water, digital water testing kits, no installation required (1/5)

2-piece TDS tester, 3-in-1 TDS, EC and temperature tester, PPM tester for drinking water, digital water testing kits, no installation required (2/5)

2-piece TDS tester, 3-in-1 TDS, EC and temperature tester, PPM tester for drinking water, digital water testing kits, no installation required (3/5)

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

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

~~£44.41~~

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

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

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

~~£54.76~~

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Electronic pH Meter, 5-in-1 Pool Tester Kit, pH/TDS/EC/Salinity/Temperature Tester, VA Backlit Display, Pool Salt Tester, for Drinking Water, Aquarium, Swimming Pool (1/5)

Electronic pH Meter, 5-in-1 Pool Tester Kit, pH/TDS/EC/Salinity/Temperature Tester, VA Backlit Display, Pool Salt Tester, for Drinking Water, Aquarium, Swimming Pool

~~£39.73~~

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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 (1/5)

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

~~£39.74~~

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Multifunctional water quality meter with backlight – pH, TDS, EC, salinity, temperature – No batteries or powder test kits required--BIEMMEDUE (1/5)

Multifunctional water quality meter with backlight – pH, TDS, EC, salinity, temperature – No batteries or powder test kits required--BIEMMEDUE (2/5)

Multifunctional water quality meter with backlight – pH, TDS, EC, salinity, temperature – No batteries or powder test kits required--BIEMMEDUE (3/5)

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

~~£71.80~~

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

pH meter, 5-in-1 controller for pH/TDS/EC/ORP/temperature, water quality tester for hydroponic ponds and drinking water aquariums--BIEMMEDUE (2/5)

pH meter, 5-in-1 controller for pH/TDS/EC/ORP/temperature, water quality tester for hydroponic ponds and drinking water aquariums--BIEMMEDUE (3/5)

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

~~£56.67~~

Free shipping

Turbidity Detection Sensor Liquid Suspended Particle Turbidity Value Detection Module Kit (1/5)

Turbidity Detection Sensor Liquid Suspended Particle Turbidity Value Detection Module Kit (2/5)

Turbidity Detection Sensor Liquid Suspended Particle Turbidity Value Detection Module Kit (3/5)

Turbidity Detection Sensor Liquid Suspended Particle Turbidity Value Detection Module Kit

~~£35.81~~

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Turbidity Detection Sensor Liquid Suspended Particle Turbidity Value Detection Module Kit

~~£35.81~~

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Turbidity Detection Sensor Liquid Suspended Particle Turbidity Value Detection Module Kit

~~£35.81~~

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

~~£58.01~~

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

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Electronic precision seawater tester – Measures salinity, pH, TDS, EC, ORP with backlit display and waterproof function – Batteries included--DTEKGAZ (1/3)

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

~~£54.38~~

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Electronic pool water quality tester for pH and chlorine levels, 13 cm cable (1/5)

Electronic pool water quality tester for pH and chlorine levels, 13 cm cable (2/5)

Electronic pool water quality tester for pH and chlorine levels, 13 cm cable (3/5)

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

~~£41.19~~

Free shipping

Electronic pH Meter, 5-in-1 Pool Water Tester with Backlight, pH/TDS/EC/Salinity/Temperature with ATC, High Precision pH Meter

~~£41.21~~

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Ulisem pH Tester, Pool pH Tester, Measures TDS, pH, EC, Temperature, Water Quality, pH Tester for Drinking Water, Swimming Pools, Aquariums, Beverages, Hydroponics (1/5)

Ulisem pH Tester, Pool pH Tester, Measures TDS, pH, EC, Temperature, Water Quality, pH Tester for Drinking Water, Swimming Pools, Aquariums, Beverages, Hydroponics

~~£38.90~~

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Digital water quality meter with accurate and reliable TDS, water quality TDS, soil EC and thermometer three in one, ideal water quality test PPM meter (1/4)

Digital water quality meter with accurate and reliable TDS, water quality TDS, soil EC and thermometer three in one, ideal water quality test PPM meter

~~£38.90~~

Free shipping

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

5-in-1 pH Meter – Water Quality Tester for Swimming Pools, Aquariums, Hydroponics – Titanium Probe, IP67 Waterproof (2/5)

5-in-1 pH Meter – Water Quality Tester for Swimming Pools, Aquariums, Hydroponics – Titanium Probe, IP67 Waterproof (3/5)

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

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Portable ORP water quality meter with brush-shaped nozzle for measuring redox potential – battery-free (1/3)

Portable ORP water quality meter with brush-shaped nozzle for measuring redox potential – battery-free

~~£39.80~~

Free shipping

Portable 4-in-1 water quality meter (pH/EC/salinity/temperature) with backlit display for aquariums ---DTEKGAZ (1/5)

Portable 4-in-1 water quality meter (pH/EC/salinity/temperature) with backlit display for aquariums ---DTEKGAZ (2/5)

Portable 4-in-1 water quality meter (pH/EC/salinity/temperature) with backlit display for aquariums ---DTEKGAZ (3/5)

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

~~£63.82~~

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

~~£63.82~~

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

~~£63.82~~

Free shipping

4-in-1 Bluetooth Water Quality Tester: pH value, electrical conductivity, total solids content, temperature – No battery or test kit required--DTEKGAZ (1/5)

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

~~£63.82~~

Free shipping

7-in-1 water quality tester for aquariums and seawater: pH value, electrical conductivity, total solids, specific gravity, salinity, redox potential--DTEKGAZ (1/5)

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

~~£63.82~~

Free shipping