VIVOSUN Digital PH and TDS Meter Kits, 0.01pH High Accuracy Pen Type PH Meter 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter For Hydroponics, Po
From £15.99
ebay.co.uk
NT Labs Narrow PH Test
From £5.99pond-planet.co.uk
Essen 160 Strips 1-14 Test Paper PH Indicator Alkaline Acid Water Litmus Testing Kit Other
£4.54joom.com
Lineco PH Testing Pen
From £8.95Premium Digital Ph Meter - Wide 0 00-14 00 Ph Range Accurate Water
£4.00NT Labs Aquarium Lab PH 6-7.6 Test Kit
£5.89Hardys PH Meter Tester Pen Digital Electronic Hydroponics Aquarium Water Test Kit UK
From £9.99diy.com
Essentials Lab Ph Control Kit 250ml & Ph Test Kit & 3ml Pipette
£16.95Milwaukee Instruments MW102 PH and Temperature Meter
From £121.85PH & Temperature 2-in-1 Continuous Monitor Meter W/Backlight Replaceable Electrode
From £39.99dhgate.com
Ph Test Kit Aquarium Ph 4-11 - Universal Indicator Fluid Liquid 15ml
£3.50Vivosun Digital Ph And Tds Meter Kits, 0.01ph High Accuracy Pen Type
£15.98Swimming 2 Way Liquid Test Kit - Ph & Chlorine Levels For Swimming
£9.561x PH Meter TDS PPM Meter and 3 in 1 Soil PH Tester PH EC Digital Kit For
£12.532 in 1 Temperature PH Monitor Meter Tester Sensor Test Kit 0~14.0 PH Measure Automatic Calibration BNC Electrode Probe For Hydroponics Aquarium Lab
From £37.90T.a. Ph Test Kit 30ml
£4.99pH Testing Pen
£9.13etsy.com
PH Meter Digital 7 in 1 PH/TDS/EC/ORP/S.G/Salinity/Temp Meter with ATC 0.01 Resolution High Purple
£42.41Essentials Lab Ph Test Kit Wide Spectrum Indicator Hydroponics
£7.10LCD Digital Electric PH Meter Hydroponics Aquarium Water Test Laboratory Tester
£4.99