DC12-24V Infrared Photoelectric Cell Automatic Beam Sensor Garage Door Shutter Obstacle Detector Alarm 1 pair (transmitter and receiver)

Wide Application - Compatible with all door openers. Can be widely used in access control systems, parking lots, defensive walls, doors and windows, balconies, garages, passageways, and other locations. Ideal for installation in security systems in schools, office buildings, hospitals, courtyards, and more. Stable Signal Transmission - High-power infrared transmitter and receiver. The transmitter produces a reliable and invisible infrared beam up to 65 inches (20 meters). When the infrared beam is interrupted, the relay will switch the signal output. Waterproof and UV Protection - Egg-shaped housing is fully waterproof and dustproof, and the housing filters sunlight, allowing it to operate in harsh environments. Easy installation. Reliable Use - Equipped with advanced security technology, it offers multiple protections and security features. If an obstacle is encountered, the infrared beam from the photoelectric cell will automatically stop or reverse the door to protect your safety and property. EASY INSTALLATION - Install each pair in opposite positions. Then, an infrared field is created between these two sensitive parts. When someone crosses the infrared zone, the detector sends an alarm signal to the security alarm host (not listed here). Specification: Black Material: PC (waterproof, UV protection) Detection range: Outdoor: 20m; Indoor range: 30m Operating voltage DC12V~24V Supply current 50mA Detection distance 20 meters Trigger time 50ms Item size: 76 x 49.2 x 21.6 mm / 3.0 x 1.9 x 0.9 inches Packing list: 1 x pair of IR sensors (transmitter and receiver)