5Pcs DIY Infrared Laser Aiming Anti-theft Burglar Alarm Module Kit


$28.86

Local Warehouse
Cheapest Prices Worldwide
Fast Postage Available
100% Customer Satisfaction
Quality Guarantee
Buy Direct From Supplier
 
Hurry up! Just 10 items left in stock
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:
 
5 x DIY Infrared Laser Kit

Category: