HI-98131 GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester €224.38 (exc. VAT) View Product
HI-981421-02 Groline 24 Hour Hydroponics Monitor for pH, EC/TDS and Temperature for in-line applications €555.26 (exc. VAT) View Product
HI-981413-20 GroLine Nutrient dosing system with HI-30033 conductivity probe EC/TDS/Temp & flow cell mounting kit €690.71 (exc. VAT) View Product