pH Sensor InPro4800i/SG/225 Back Catalog number: 52005384 Availability: In the manufacturer's stock Price on request - + Recommended 18901195 PH7.00 250mL 7.00pH, one bottle 13,00 € 18901157 D201G Refillable combination pH probe 24,38 € 18901215 84μS/cm 500mL Conductivity Solution, one bottle 38,19 €