Combined pH electrode MA920B/1 Back Catalog number: MA920B/1 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended MI56P pH/Temp probe for pH55 and pH56 Price on request 18901211 12.88mS/cm 250mL Conductivity Solution, one bottle 19,90 € 52002547 pH Sensor InPro3250/120/PT100 Price on request