Infrared (IR) break-beam sensors are a simple way to detect motion. They work by having an emitter side that sends out a beam of human-invisible IR light, then a receiver across the way which is sensitive to that same light. The sensor has a range of about 0.4m (16in). without the IR Lens Assembly and about 2m (6ft) with it. Only use the IR Lens Assembly when necessary as it will decrease sensitivity when used at a close range.
The advantages of using IR sensor are: Infrared sensors can detect infrared light from large distances over a wide area; No interference with electrical devices; Infrared technology is simple and extremely cheap; The shield is simple; No licenses are required.Photocell/Infrared beam sensor is universal used for lifting doors, revolving doors, sliding doors, wall security protection, window and balcony security, warehouse security, parking lots and other outdoor security sites. Welcome to learn more about Infrared beam sensor alarm on Yaoertai infrared beam manufacturer.