pH Sensor InPro4800i/SG/225 Back Catalog number: 52005384 Availability: In the manufacturer's stock Price on request - + Recommended MA923D/1 pH/ORP/Temp amplified probe MA923D/1 Price on request MA917B/1 Comb glass pH electrode, DJ, refill, BNC, 1m Price on request MA923B/3 Redox Epoxy electrode MA923B/3 Price on request