Combined glass pH electrode MA991B/1 Back Catalog number: MA991B/1 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended 52005384 pH Sensor InPro4800i/SG/225 Price on request MA911B/2 Double junction pH electrode MA911B/2 Price on request MA9305 Pack of 100 x 1.4V batteries. Price on request