pH Sensor InPro4260/120/PT1000 Back Catalog number: 52002987 Availability: In the manufacturer's stock Price on request - + Recommended HI1043B Refillable Double Junction pH Electrode Price on request MA851D/1 pH/EC/TDS/Temp. amplified probe, 1m Price on request MA841 Spare membrane for MW600 (5 pcs). Price on request