CHANZON 5mm IR Infrared LED Diode Emitter + Receiver 940nm Sender Reciver Kit + VS1838B 1838 Sensor Ray Night Vision 940 nm 20pcs Lighting Lamp Bulbs Assortment for Arduino Raspberry - - Amazon.com
Infrared Receiver VS1838B | Makerfabs
BOJACK LED Infrared Emitter and IR Receiver Diode, LEDs Infrared Emission and Receiver Tube for Arduino (Pack of 10 Pairs): Amazon.com: Industrial & Scientific