50ml PH Water Test Solution Multipurpose Water Tester Paper High Precision Easy Detection Laboratories Aquarium Pool Accessories

PH Buffer Powder Calibration Set PH4.01 PH6.86 PH9.18 ORP 256MV KCL Solution Powder For PH Meter Tester Aquarium Hydroponics

£5.28

5 in 1 PH Test Strips Multipurpose SPA Swimming Pool Water Tester Paper Hardness Tool Bottled 50pcs

£7.23

NT Labs Aquarium Narrow pH Test

£6.99

3 in 1 PH Meter Soil Moisture Meter Sensor Fertility Test Tool For Indoor/Outdoor Gardening Plant Moisture/Fertility/PH Testing

£15.17

Bluelab pH Controller Connect

£519.95

IBS Scherer pH value < 11.5, pH value < 11.5, 20 l canister

£174.00