Best Aquarium Digital Tester Deals Online in the UK (10 Deals Found)

Last Updated - 01/04/2026 Sort By:

Best Choice
VARIFY

New
VARIFY Instant 4-in-1 TDS Meter Digital Water Tester for Drinking Water Accurate 0 9990 PPM EC & Temp Readings Ideal for
Accurate 4-In-1 Water Testing Test All Water Sources With Lab-Grade Precision. Measures Tds, Ec, And Temperature In °C °

£8.49 £9.99
Best Value
UIUZMAR

New
UIUZMAR Water pH TDS Meter Pen, pH EC Meter Hydroponic, Test the pH TDS Value of Aquarium, 4 in 1 pH/EC/TDS/Temp Meter D
Aquarium pH TDS Meter: UIUZMAR pH tds tester can measure the TDS pH level of freshwater aquarium or home fish tank water

£27.99
flintronic

New
PH Meter, 5-in-1 PH/TDS/EC/Salinity/Temperature Water Quality Tester, LCD Green Backlight Display Water Quality Tester f
【5-in-1 MULTI FUNCTION】-This digital pH meter is designed with a 5-in-1 function, which is can be used to test the PH /

£19.99
flintronic

New
PH Meter, 5-in-1 PH/TDS/EC/Salinity/Temperature Water Quality Tester, LCD Green Backlight Display Water Quality Tester f
【5-in-1 MULTI FUNCTION】-This digital pH meter is designed with a 5-in-1 function, which is can be used to test the PH /

£19.99
ARCHER LIFE HALL

New
2026 NEW TDS Meter Digital Water Tester, 4 in 1 EC & Temperature (℃/℉) Meter, 0-9999 ppm Water Quality Tester for Drinki
ACCURATE WATER TESTING: Our TDS meter gives you fast and reliable results with a high-precision chip and titanium alloy

£9.99
13% Off
flintronic

New
flintronic Digital pH, 0.01pH High Accuracy pH Tester, 2% Reading Accuracy PH Temp Water Testers, pH Meters for Househol
【pH Meter】A very for checking the quality of your water, whether it's from a faucet, hot tub, homebrew, indoor soil grow

£6.99 £7.99
UIUZMAR

New
UIUZMAR pH Salt Tester for Aquarium, Digital Salinity Tester for Salt Water Swimming Pool, Pond Water 5 in 1 pH TDS EC S
Aquarium pH Salt Tester: UIUZMAR pH salinity meter can measure the ppm of freshwater fish tanks such as Koi ponds within

£36.99
UIUZMAR

Used
UIUZMAR pH Salt Tester for Aquarium, Digital Salinity Tester for Salt Water Swimming Pool, Pond Water 5 in 1 pH TDS EC S
Aquarium pH Salt Tester: UIUZMAR pH salinity meter can measure the ppm of freshwater fish tanks such as Koi ponds within

£26.03
QNCIGER

New
QNCIGER TDS Meter, Digital Water Quality Tester with Automatic Temperature Compensation (ATC), 0-9990 ppm Range, for Dri
Accurate & Reliable TDS Meter – Get precise water quality data with advanced microprocessor technology. Features ±2% rea

£9.99
Cuteefun

New
Cuteefun Digital PH Meter, 5 in 1 Water Quality Tester with Back light, PH/TDS/EC/Salinity/Temp Meter with ATC, 0.01 Res
【5 in 1 Function】This is a water test kit with Ph meter, TDS meter, and EC salinity temperature test function. The backl

£17.49

10 Aquarium Digital Tester deals are available from: Amazon stores, starting from £6.99.
The biggest discount we found is 15% on VARIFY Instant 4-in-1 TDS Meter Digital Water Tester for Drinking Water Accurate 0 9990 PPM EC & Temp Readings Ideal for RO Systems, Aquariums, Pools Built for Professionals, Easy for Anyone at Amazon.
The lowest price we found is £6.99 while the highest is £36.99.
Prices for the best Aquarium Digital Tester deals average at £18.39.
Last updated on April 1, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Aquarium Digital Tester.