pH Sensor InPro4260i/SG/225 Back Catalog number: 52005382 Availability: In the manufacturer's stock Price on request - + Recommended MA924B/1 Glass ORP electrode MA924B/1 Price on request MA921B/2 Double junction ORP platinum electrode MA921B/2 Price on request MA918B/1 Comb glass pH electrode 3 dia, DJ,refill, BNC, 1m Price on request