With digital noise reduction that removes intermittent sounds like barking dogs and passing vehicles.
DNR-18: the advanced digital CPU eliminates intermittent interfering noises, like passing vehicles, people talking, and pedestrian footsteps.
Traditional band-pass filters filter continuous noises, such as wind or idling engines. While traditional filters are very useful,
they are not able to filter out the common, intermittent noises with broad frequency ranges.
DNR-18 has optional accessories for water leak "pinpointing" and water leak "surveying".
Graph the leak sound levels at 5-10 spots directly over the pipe.
Let the DNR-18's amplifier pinpoint the leak's location for you instead of relying upon your hearing