Product · United States

Analog Decibel‑Detection LM2904 Sound‑Intensity Detection Module, Noise‑Activated Sound‑Sensor Microphone Module

Product no longer available. The stores we track no longer sell it; last price seen $4.53.

Price history: 4 daily prices tracked since 2026-10-19; lowest $4.51, highest $4.53.

Analog Decibel‑Detection LM2904 Sound‑Intensity Detection Module, Noise‑Activated Sound‑Sensor Microphone Module

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