DIY Laser Alarm STEM Kit
A laser tripwire kit with a real working beam and buzzer
Each laser-cut wood part slots together cleanly, and the wiring between the LDR sensor and the laser module is straightforward. Press the button, the beam aligns, and the buzzer fires the moment anything breaks the beam. A real working demonstration of optical electronics, visual, audible, and hands-on.
A build-it-yourself tripwire alarm that works like a real one
Give this kit as an educational gift: intuitive, safe, even for a curious teen. Worried the laser is dangerous? The beam is low-power, sized for classroom use, with a clear manual. Durability and safety are both baked in.
Laser Alarm STEM Kit Specifications
- Dimensions: approx. 4.5 x 3 x 4.7 in (transmitter) and 3 in deep, same base for the receiver
- Materials: laser-cut wood, PCB, LDR sensor, 5 mW laser, plastic buzzer
- Power: 2 x AA batteries per unit (not included), connectors, on/off button
- No-solder assembly, detailed manual included, suitable for ages 10+
| Occasion | Birthday, Christmas, Back to school |
|---|---|
| Theme | Physics |
| Age range | 8-10, 11-14, 15-17 |
| Use | Experiment, Learning, Play |
Once the order has been validated by our teams, we process it within 24 working hours, then it will be dispatched within 72 hours.
We deliver within an average of 7 to 14 business days. We make every effort to ensure that you receive your order as quickly as possible, without compromising the quality of our goods.
You will receive email notifications and can follow the progress of your delivery with complete peace of mind on our order tracking page.
