Sensitive sensing: Leak detector features sensitive sensing and noise filtering, with an exploration frequency range of 200Hz3000Hz for improved efficiency. Four levels of adjustment: Wall leakage tester with metal body offers four position adjustments, testing depth of 11.5m (3.34.9ft) depending on pipe pressure. Accurate positioning: Water pipe leakage monitor provides precise positioning; higher values indicate proximity to the leak point for capturing different leaks. Sensitivity display: Rotate counterclockwise to decrease sensitivity or clockwise to increase it. Applicable scenarios: Suitable for various uses including firefighting pipes, floor heating pipes, household pipes, and car rattles.