IR barrier

Kit for sensing when an object is present between the transmitter and reciever. The module works by sending out an infrared light that, when no object obstructs the light, is picked up by the reciever. When an object blocks the light, the LED lights up and the speaker plays a tone.

Specifications
* audible (85dB) and visible (LED) alert
* range: 1 to 4m (3.3ft to 13ft)
* on/off switch provided
* power supply:
o transmitter: 9VDC / 50mA max.
o receiver: 9VDC / 20mA max.
o 9V battery holder and adapter jack included
* dimensions:
o transmitter: 55 x 40mm / 2.2 x 1.6"
o receiver: 100 x 50mm / 3.9 x 2.0"