pH Sensor InPro4800i/SG/225 Back Catalog number: 52005384 Availability: In the manufacturer's stock Price on request - + Recommended MI58P pH/ORP/Temp probe for pH58 Price on request MA916B/1 Combined glass pH electrode, refill, BNC, 1m Price on request MA920B/1 Combined pH electrode MA920B/1 Price on request