Place the IR light barrier strategically so it can warn you when someone is near!
This kit consists of two parts: an infrared transmitter and a receiver. As long as the receiver is able to detect the infrared beam that is sent out from the transmitter, nothing will happen. But once the signal is obstructed, an alarm will go off. For example, place both parts on either side of your bedroom door. The buzzer will sound the alarm when your parents or other unwanted intruders try to enter.
Many applications are possible: announce visitors, warn against burglars, set limits, conduct science projects... The generated beam carries up to 4 m away. When the beam is broken, the buzzer sounds an 85dB alarm and a LED indicator lights up. The receiver is powered by a standard 9 V battery (not included). The transmitter is equipped with a DC jack (9 V / 20 mA).
Attention: only suitable for indoor use.
Tools:
: To make this kit, you will need some basic tools (not included): a soldering iron or station, solder tin and pliers. Another practical tool is an anti-static soldering mat.
Specifications:
- Audible (85dB) and visible (LED) alert
- Range: 3.3ft to 13ft
- On/off switch provided
- Power supply:
- Transmitter: 9V DC / 50mA max.
- Receiver: 9V DC / 20mA max.
- 9V battery holder and adapter jack included
- Dimensions:
- Transmitter: 2.2 x 1.6"
- Receiver: 3.9 x 2.0"
- Not recommended for outdoor use
Applications: announce visitors, warn against burglars, set boundaries, for science projects, etc.
Documentation and Downloads