pH Sensor InPro4260/120/PT1000 Back Catalog number: 52002987 Availability: In the manufacturer's stock Price on request - + Recommended MA917B/1 Comb glass pH electrode, DJ, refill, BNC, 1m Price on request HI1043B Refillable Double Junction pH Electrode Price on request MA921B/1 Double junction orp platinum electrode MA921B/1 Price on request