IR Infrared Transmitter and Receiver (5mm)x 1 Set

5mm IR LED Infrared Receiver and Transmitter Diodes is a Pair of Infrared LED and Photo diode tuned to same IR wavelength. You can use this sensors for your Robotics, Pulse Oximeter and other applications. 5mm IR LED Light Emitting Diode emits light in the infrared region, which is invisible to human eyes.