Robinair 16455 TruTrack Ultrasonic Leak Detector.
Detects Refrigeration leaks, pressurized gas leaks, vacuum leaks, dry nitrogen gas leaks, steam leaks, etc. It will detect any gas under pressure or vacuum.
Allows you to identify potential failures in bearings, valves, solenoids and other operational components.
Audible and visual leak indication.
Powered by one 9V battery (included).