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Description
HY929 Enhance Sound Amplifier Leak Detector Listen System Through Wall [Non-recording Version] - US Plug
Strong penetrabilty, highly sensitive metal detector
The machine is based on the original HY929
Using new components and the most advanced technology, the penetration enhancing times, sound quality greatly improved
Specification:
Rated current: 10mA
Power supply: 3.7V
Probe sensitivity: -70Ddb
Time required to fully charge: about 5 hours
Penetrating medium: cement, steel pipe, rock, wooden board
Listening method: headphones (16? speakers can be connected externally)
Recording: external 3.5mm audio cable is required for recording
Audio magnification: 20000 times