Audio Life Detector (First Generation)

Audio (sound wave vibration) life detector

Brand: Sheng Bolan

Model: BE-20V

  The audio life detector can quickly and accurately locate victims buried under rubble following various natural disasters, and it enables voice communication with survivors via an audio transmission system. This instrument employs a specialized microelectronic processor and utilizes an extremely sensitive audio vibration sensor to detect even the tiniest vibrations propagating through air or solid materials. Vibration, and through high performance Can Filter Eliminate It can eliminate interfering noise while simultaneously amplifying sound signals from beneath the rubble.

       The product’s key features include the ability to precisely locate trapped individuals through acoustic wave vibrations, as well as to engage in voice communication with them via high-fidelity microphones and speakers—greatly enhancing rescue efficiency.

      Primarily used in earthquake rescue, it can record underground sound waves and detect even the slightest vibrations in rubble—such as shouts, slaps, scratches, and knocks. It can also filter out surrounding background noise, helping rescuers pinpoint the location of survivors in distress.

1. The host is equipped with a 3.12-inch OLED audio spectrum display that detects the presence of trapped individuals by analyzing changes in the spectrum.

2. The audio vibration detection frequency ranges from 50 Hz to 1500 Hz and offers three adjustable settings; sensitivity is -70 dB, with a maximum audio amplification factor of 20,000 times; it can penetrate media such as cement, metal, and wood.

3. High-fidelity sound pickup probe, with a test range of 5-100 square meters in air and a frequency range of 200 Hz to 10 kHz;

4. The speaker output volume exceeds 120 decibels;