The Infrared Receiver is used to receive infrared signals, the IR  detector have a demodulator inside that looks for modulated IR at 38  KHz. Often use with the infrared emitter to work together. Perfect for  smart home, to remote your applicaliance.
 
Operating voltage: 3.3~5V DC
Receiver: IRM-3638N3
IR:38KHz

 
• 1x Circus Pi Infrared receiver
 
• 1x 4 pin female to Circus  4pin Dupont wire
 
• 1x 4 pin wire, 20cm
 
• 1x Header, 1x4, 12mm