Combined glass pH electrode MA991B/1 Back Catalog number: MA991B/1 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended MA914BR/1 pH/Temp amplified probe with 1m cable for Mi105 Price on request 52005384 pH Sensor InPro4800i/SG/225 Price on request MA841 Spare membrane for MW600 (5 pcs). Price on request