pH electrode InLab Expert Pro Back Catalog number: 51343101 Availability: In the manufacturer's stock Price on request - + Recommended 18901164 DF01 Flexible electrode holder 43,78 € 18901207 1408μS/cm 250mL Conductivity Solution, one bottle 19,90 € 18901208 12.85mS/cm 250mL Conductivity Solution, one bottle 19,90 €