2pcs Light and dark sensing alarm photosensitive sensing DIY electronic parts
USD 11.71 USD
Specifications
| Brand | Unbranded |
| Type | Alarm kit |
| Color | Blue |
W1 is an adjustable resistor, which is used to adjust the induction sensitivity. GMDZ is a photosensitive resistor. Q2 is saturated. SP1 is that the buzzer starts to sound alarm after being powered on.
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