Transmission Receiver LED Sensor

A matched pair of infrared LEDs — one emitting, one receiving — for building your own beam-break detectors, proximity sensors and short-range optical links at whatever spacing your project needs. Because they are discrete components rather than a fixed module, you choose the geometry: face them across a doorway for a tripwire, or side by side pointing forward for a reflective proximity sensor. Discrete pair lets you choose your own spacing and geometry; Works for both through-beam and reflective arrangements; Infrared output is invisible to the eye; Very low cost for custom sensing