Ultrasonic Leak Detectors from Monarch Instrument

UltraPro AG500
UltraPro features a unique Automatic Gain Control which automatically filters the signal to provide the best signal-to-noise ratio, suppressing background noise and pinpointing leaks.

VPE
Designed for one hand operation, this lower cost instrument has many of the same quality features as the VPE 1000 offering patented heterodyne technology.

VPE1000
Our meters are most sensitive to sounds around 40 kHz, that's twice the frequency of the best human hearing. VPE 1000 is a patented ultrasonic detector which offers extraordinary features.