DIY Infrared Laser Aiming Anti-theft Burglar Alarm Module Kit

New

20 available

R415.00

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szulou3786

92.82 % Positive ratings

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Product details

Condition

New

Location

International

Bob Shop ID

648366233

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