Combined pH electrode MA920B/1 Back Catalog number: MA920B/1 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended MI57P ORP/Temp probe for ORP57 Price on request 1580-500ML CHEMSOLUTE ready-to-use conductivity sol. 12880 µS/cm, 500ml (THG) Price on request MC720 MC720 Controller kit Price on request