Digital Testing Pens

Koi Medic Salinity Tester

Koi Medic Salinity Tester

feeders of the highest quality for over 30 years and therefore gives a 3 year guarantee!..

£97.20

PH Pal + Digital PH Pen

PH Pal + Digital PH Pen

The pH Pal digital pH meter contains a special probe which measures the pH of water. The end of the ..

£57.96

Senz PH Pen

Senz PH Pen

Senz pH tester is a user friendly & simple to use pH meter. A water resistant case and features ..

£67.00

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