Automatic Door Wireless Infrared Sensor Set - Outdoor Photocells, Presence Detectors

Waterproof Protection: The infrared door beam sensor is IP55 waterproof, can be installed indoors or outdoors, small size, easy to install, does not affect the normal operation of your device. Wide Applications Provides invisible infrared beams for automation applications such as sliding and swing doors, garage doors and security applications, exterior or interior fences, etc. Durable Structure The infrared door beam detector is made of superior ABS, wear-resistant and durable, the transmitter is powered by 2 AA batteries (not included), and the long service life can reach about 2 years. Low Battery Reminder When the battery is low, the red LED on the side of the transmitter flashes, and the buzzer of the receiver will sound every second to remind you to replace the battery in time. High Sensitivity: The lens type optical element strengthens the intensity of the beam, has good immunity to false alarms caused by rain, snow, fog, etc., very convenient to use.