Bacharach Tru Pointe Ultra Ultrasonic Leak Detector (mfg. part no. 0028-8000) is a compact ultrasonic leak detector that uses patented technology to detect leaks in air conditioning and refrigeration systems. Bacharach Tru Pointe Ultra Ultrasonic Leak Detector is the world′s first pocket-size electronic instrument that can simultaneously detect the vacuum and high pressure leaks that occur in HVAC/R systems.