pH Sensor InPro4260/120/PT1000 Back Catalog number: 52002987 Availability: In the manufacturer's stock Price on request - + Recommended MA991B/1 Combined glass pH electrode MA991B/1 Price on request MA914BR/1 pH/Temp amplified probe with 1m cable for Mi105 Price on request MA921B/2 Double junction ORP platinum electrode MA921B/2 Price on request