Combined glass pH electrode MA991B/1 Back Catalog number: MA991B/1 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended MA915B/2 pH glass electrode for with 2meter cable. Price on request 52005382 pH Sensor InPro4260i/SG/225 Price on request MA830R Stainless steel temperature probe for MW102. Price on request