Wireless Infrared Beam Sensor for Doors and Reliable Security Alarm with IP55 Rating for Automatic Protection of Interior and Exterior Doors

High sensitivity: Advanced lens-type optics amplify the beam while minimizing false triggers due to weather conditions like rain or snow for reliable performance. Low battery alert: A flashing red LED on the transmitter and an audible buzzer warn you when the battery level is low, ensuring a quick replacement. Adaptable use: Provides accurate infrared beams for automated garage door systems and indoor and outdoor security setups. Weatherproof: Built with an IP55 rating, this compact sensor installs effortlessly in any environment without disrupting the device's functionality. Durable design: Made from robust ABS material, the detector operates on two AA batteries, providing up to two years of continuous service.