pH Sensor InPro4800i/SG/225 Back Catalog number: 52005384 Availability: In the manufacturer's stock Price on request - + Recommended SE510 Conductivity/TDS probe with 1meter cable SE510 Price on request MA915B/2 pH glass electrode for with 2meter cable. Price on request MA914BR/1 pH/Temp amplified probe with 1m cable for Mi105 Price on request