pH Sensor InPro4800i/SG/225 Back Catalog number: 52005384 Availability: In the manufacturer's stock Price on request - + Recommended MC510 ORP controller MC510 Price on request MI56P pH/Temp probe for pH55 and pH56 Price on request LCL-30-3 2M Lithium Chloride Electrolyte, 3 x 30ml Price on request