Feature: 1. ADVANCED SECURITY TECHNOLOGY: Gate infrared beam sensor features advanced security technology to ensure multiple protections and safety. It stops or automatically reverses the gate to preserve the safety of poultry and public property such as homes. 2. HIGH COMPATIBILITY: Outdoor infrared sensor works with all top of the line gate openers and is also compatible with most brands of gate openers, for other access control security alarm systems, etc., meeting your different needs. 3. EASY INSTALLATION: Door infrared beam sensor features a fully sealed waterproof and dustproof cover that makes it work in harsh environments, which is easy to install and very convenient to use, could be the best choice for you. 4. HIGH POWER AND RELIABLE: Automated gate infrared detector sensor high power, transmitter creates a reliable infrared beam, and when the infrared beam is interrupted, a relay will output a switch signal, which is quite intelligent. 5. AUTOMATIC ADJUSTMENT DESIGN: Infrared beam sensor features an auto tuning design that will automatically adjust power according to environmental, greatly extending the life of the emitter tube while reducing power consumption. 6. HIGH PERFORMANCE: There is an infrared zone between wireless infrared sensor, when a person or object passes through this zone, the transmitter will transmit a signal like the receiver, which will make the automatic door open or stop. Specification: Item Type: Gate Infrared Beam Sensor Material: Plastic Use: Electric Chicken Coop Door, Automatic Door Infrared Sensor Receiving Range: 12m/39.4ft Wavelength: 940nm Emission Angle: ≤ ± 5 Degree Use Voltage: Emitter: 3V (2 x AAA Dry Batteries) (Shipped Without Batteries) Receiver: 12-24V DC. Package List: 1 x Infrared Receiver1 x Infrared Emitter1 x Instruction Book2 x Point Map6 x Expansion Screw Tube6 x Large Screws2 x Small Screws2 x Rubber Gasket Note: Compatible with most brands of door openers (as long as models with normally open or normally closed dry contact inputs are supported)