... Sensor can be used on water coller Centrifugal Chiller and water cooler chiller,water cooler single screw chiller,etc. The products features ... Applicable medium R407C,R134a,R22,F22,oil,gas,water Certification ProgramIntrinsically Safe E, RoHS, EU electrical ... safety standards CE ApplicationCompressor Water supply in building apartments Hydraulic controlAir conditioning unit ...