pH Sensor InPro4800i/SG/225 Back Catalog number: 52005384 Availability: In the manufacturer's stock Price on request - + Recommended 18901209 84μS/cm 250mL Conductivity Solution, one bottle 20,33 € MA915B/2 pH glass electrode for with 2meter cable. Price on request MA811/2 Conductivity/TDS probe with 2meter cable (MC410). Price on request