Mastercool 56100 Refrigerant Leak Detector with Replaceable Sensor

The 56100 refrigerant detector has a sensitivity of 0.1 oz. / year for all refrigerants. The refrigerant leak detector has 3 selectable levels of sensitivity (low-medium-high) as well as a visual leak level indication (5 levels of detection) and a variable frequency audible alarm to help detect refrigerant leaks. The unit also has a reset button to help pinpoint the leak source. When the leak detector has indicated a leak, move the probe into fresh air, hit the reset button, and then re-inspect the area to pinpoint the leak’s location.