iR-gas Flush Mounted R407a Refrigerant Gas Detector 0-1,000 ppm
GDA 3160 R134a Flush Mount Refrigerant Gas Detector, Range: 0-1000 ppm; NDIR Sensor, Output: 4-20 mA, 0-20 mA, 0-5 VDC or 0-10 VDC, Alarm Relay, Power: 24 VDC 3-wire powered, Mute Switch, Buzzer, Factory set alarm: 250 ppm, Factory Calibrated Output set to: 4-20 mA