Combined glass pH electrode MA991B/1 Back Catalog number: MA991B/1 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended 18901171 D201FILL Refillable combination pH probe 16,72 € MI56P pH/Temp probe for pH55 and pH56 Price on request 18901187 DDJS-0.01V ultra-low conductivity probe 118,21 €