RF signal wireless detector, rf detector circuit, Wireless detectors circuit, detectors

 A selection of programmable optoelectronic devices from many different manufacturers. Useful if one needs Infrared Receivers, Emitters or Transceivers, Motion Control devices, LED displays, Optical Switches & Sensors or an Optocoupler.

https://www.futureelectronics.com/p/semiconductors--optoelectronics--photodetectors-infrared-detectors/op800a-tt-electronics-optek-technology-1507805