Storescent Three Legs 5 Pairs Infrared Diode LED IR Emission and Receiver Sensor Security Circuit and Motion Detector Electronic Hobby Kit

Voltage:2.7~5.5V Frenqence:38KHz Receiver Angle:±45° Operate Distance:18~20m Total Length approx. 30mm Package includes:- 5 Pcs VS1838B Infrared receiver 5 Pcs 5mm 940nm IR infrared Emission Tube LED Lamp Applications:- Reflective sensors for hand dryers, towel or soap dispensers, water faucets, toilet flush Vending machine fall detection Security and pet gates Person or object vicinity activation Fast proximity sensors for toys, robotics, drones, and other consumer and industrial uses