A, long Size: 10mm X width 30mm X 20mm high B, the main chip: LM393, vibration probes C, the working voltage: DC 3-5V D characteristics: 1, with a TTL-level signal output indication; 2, single-channel signal output; 3, the output valid signal is high, the indicator goes off; 4, adjustable sensitivity (fine-tuning); 5, vibration detect a wide range of non-directional; 6, with mounting holes, flexible and convenient firmware installed.
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