pH Sensor InPro4260/120/PT1000 Back Catalog number: 52002987 Availability: In the manufacturer's stock Price on request - + Recommended 18901214 12.85mS/cm 500mL Conductivity Solution, one bottle 37,41 € SE220 Double junction pH electrode SE220 Price on request 18901171 D201FILL Refillable combination pH probe 16,72 €