DIY infrared Laser Aiming Anti-theft Burglar Alarm Module Kit
$13.11
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Note:This is a DIY kit, you need to assemble it, easy to install, not supply instructions.
Working principle
When no light hits the photosensitive resistor, the transistor turns on and the buzzer gets the power to start tweeting. When there is light on the photosensitive resistor, the transistor is turned off, the buzzer is powered off, stop tweet. Transistor used here as an electronic switch.
Feature
Laser:5mw
Working voltage 3V
Package includes
1 x DIY Infrared Laser Kit
| Weight | 0.046 kg |
|---|
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