pH Sensor InPro4800i/SG/225 Back Catalog number: 52005384 Availability: In the manufacturer's stock Price on request - + Recommended SE300 Double junction orp platinum electrode SE300 Price on request MA811/2 Conductivity/TDS probe with 2meter cable (MC410). Price on request 52002547 pH Sensor InPro3250/120/PT100 Price on request