Best Selling Products

Our Best Selling Products category features the most popular and trusted water testing solutions chosen by professionals and everyday users alike. From quick and easy test kits to advanced meters and reagents, these products have earned their place as customer favourites for their reliability, accuracy, and ease of use. Whether you’re testing pool water, drinking water, or industrial systems, these top picks deliver the dependable results you can count on.

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4197 products

pH 450 Meter Kit; pH/mV/Ion/Temp
TEST ALL WATER
pH 450 Meter Kit; pH/mV/Ion/Temp Sale price£558.19
pH 450 Meter pH/mV/Ion/Temp
TEST ALL WATER
pH 450 Meter pH/mV/Ion/Temp Sale price£521.27
pH 5+ pH Meter
TEST ALL WATER
pH 5+ pH Meter Sale price£363.44
Elite pH Spear Pocket Testers and Replacement SensorsElite pH Spear Pocket Testers and Replacement Sensors
TEST ALL WATER
Elite pH Spear Pocket Testers and Replacement Sensors Sale price£184.29
Elite ORP Pocket Testers and Replacement SensorsElite ORP Pocket Testers and Replacement Sensors
TEST ALL WATER
Elite ORP Pocket Testers and Replacement Sensors Sale price£87.19
Elite CTS Conductivity / TDS / Salinity Cup-sensor Pocket Testers and Replacement SensorsElite CTS Conductivity / TDS / Salinity Cup-sensor Pocket Testers and Replacement Sensors
TEST ALL WATER
Elite CTS Conductivity / TDS / Salinity Cup-sensor Pocket Testers and Replacement Sensors Sale price£41.05
Elite CTS Conductivity / TDS / Salinity Pin-sensor Pocket Testers and Replacement SensorsElite CTS Conductivity / TDS / Salinity Pin-sensor Pocket Testers and Replacement Sensors
TEST ALL WATER
Elite CTS Conductivity / TDS / Salinity Pin-sensor Pocket Testers and Replacement Sensors Sale price£39.76
CyberScan PCD 650 pH/ mV/ Ion/ Conductivity/ TDS/ Resistivity/ Salinity/ Dissolved Oxygen Meter
TEST ALL WATER
CyberScan PCD 650 pH/ mV/ Ion/ Conductivity/ TDS/ Resistivity/ Salinity/ Dissolved Oxygen Meter Sale price£2,559.06
CyberScan CD 650 Conductivity/ TDS/ Resistivity/ Salinity/ Dissolved Oxygen Meter
TEST ALL WATER
CyberScan CD 650 Conductivity/ TDS/ Resistivity/ Salinity/ Dissolved Oxygen Meter Sale price£1,849.74
CyberScan PD 650 pH/ mV/ Ion/ Dissolved Oxygen Meter
TEST ALL WATER
CyberScan PD 650 pH/ mV/ Ion/ Dissolved Oxygen Meter Sale price£1,697.74
CyberScan PC 650 pH/ mV/ Ion/ Conductivity/ TDS/ Resistivity/ Salinity Meter
TEST ALL WATER
CyberScan PC 650 pH/ mV/ Ion/ Conductivity/ TDS/ Resistivity/ Salinity Meter Sale price£1,482.40
PD 450 Meter Kit:
TEST ALL WATER
PD 450 Meter Kit: Sale price£2,226.12
PC 450 Meter Combi KitPC 450 Meter Combi Kit
TEST ALL WATER
PC 450 Meter Combi Kit Sale price£807.22
CyberScan DO 600 Dissolved Oxygen Meter
TEST ALL WATER
CyberScan DO 600 Dissolved Oxygen Meter Sale price£1,343.07
CyberScan DO 600 Dissolved Oxygen/Temp Meter
Test All Water
CyberScan DO 600 Dissolved Oxygen/Temp Meter Sale price£1,457.07
DO 450 Meter Kit
Test All Water
DO 450 Meter Kit Sale price£1,228.62
COND600 Meter with 3m Cable 4-Cell Electrode, Das Software, Power Adapter & TDS carrying kit
Test All Water
COND600 Meter with 3m Cable 4-Cell Electrode, Das Software, Power Adapter & TDS carrying kit Sale price£912.40
Replacement pH/Conductivity/Temp Sensor for PCTestr 35, PTTestr 35, PCSTestr 35
Test All Water
Replacement pH/Conductivity/Temp Sensor for PCTestr 35, PTTestr 35, PCSTestr 35 Sale price£64.66
Replacement Sensor for ECTestr, ECTestr10, TDSTestr, TDSTestr10 Series, ECTestr11, TDSTestr11 & all SaltTestr Series, 2-pin type
Test All Water
Replacement Sensor for ECTestr, ECTestr10, TDSTestr, TDSTestr10 Series, ECTestr11, TDSTestr11 & all SaltTestr Series, 2-pin type Sale price£39.22
REPLACEMENT BNC CONNECTOR SENSOR FOR PHTESTR 10BNC AND ORPTESTR 10BNC
Test All Water
REPLACEMENT BNC CONNECTOR SENSOR FOR PHTESTR 10BNC AND ORPTESTR 10BNC Sale price£42.74
Waterproof PTTestr 35
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Waterproof PTTestr 35 Sale price£143.72
Waterproof PCTestr 35
Test All Water
Waterproof PCTestr 35 Sale price£143.72
Waterproof SaltTestr11 Tester with Temperature Display in °C and °F
Test All Water
Waterproof SaltTestr11 Tester with Temperature Display in °C and °F Sale price£99.20
Waterproof TDSTestr11 Dual Range Tester
Test All Water
Waterproof TDSTestr11 Dual Range Tester Sale price£106.38

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