1pcs small microphone sound sensor module for DIY
Product Specification:
- Working voltage: DC 4-6V
- LM393 main chip
- Low level output signal used for sound control light
- Great module for sound alarm system
- Two red LED indication: POWER and SENSOR. POWER: Power is off. SENSOR: When the microphone senses sound reaches a certain value, this LED light
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₹140.00