pH Sensor InPro4260/120/PT1000 Back Catalog number: 52002987 Availability: In the manufacturer's stock Price on request - + Recommended MA921B/2 Double junction ORP platinum electrode MA921B/2 Price on request 18901208 12.85mS/cm 250mL Conductivity Solution, one bottle 19,90 € 18901197 PH1.68 250mL 1.68pH, one bottle 18,71 €