pH electrode InLab Expert Pro Back Catalog number: 51343101 Availability: In the manufacturer's stock Price on request - + Recommended 18901208 12.85mS/cm 250mL Conductivity Solution, one bottle 19,90 € 18901194 PH9.18 250mL 9.18pH, one bottle 12,74 € MI57P ORP/Temp probe for ORP57 Price on request