Manual Listening sticks from Accurate Detection are extremely effective at finding water leaks, throttled valves and checking whether a valve has been closed.
The last application is very relevant when setting up pressure management zones.
The Manual Listening stick consists of probe bars, a diaphragm and ear piece. Many of Accurate Detection’s "old school" operators prefer the sound on a mechanical listening stick to the electronic listening stick as there is no crackle of electronic noise in the background.
More information is available on request.