pH Sensor InPro4260/120/PT1000 Back Catalog number: 52002987 Availability: In the manufacturer's stock Price on request - + Recommended MA841 Spare membrane for MW600 (5 pcs). Price on request MA991B/1 Combined glass pH electrode MA991B/1 Price on request PC-1000-654 Dosing Tip where the tip is immersed in the sample Price on request