WATERPROOF: The IR alarm sensor adopts waterproof design. Has the functions of waterproof, dustproof and mite-proof, and is suitable for use in harsh environments DURABLE: The product is fully sealed with a polymer coating and its surface is treated with beautiful and aging-resistant paint. APPLICATIONS: Ideal for installing a security system in a school, office building, hospital, private courtyard, etc. Ideal for front doors, window frames, driveways, pathways and anywhere in your home where you want to be alerted. SIMPLE TO INSTALL: Small size for less conspicuous installation. Both practical and convenient, giving you a great view and a sense of security SMART DESIGN: Equipped with a smart chip to automatically detect environmental changes, automatically adjust the radio's transmitting power according to environmental conditions, effectively extend the service life of the launch tube, while reducing power consumption Specification: Material: ABS Color: Black Alarm output: Nominal NC and NO contact AV / DC 30V, 0.5A The detection method covers the light at the same time Warning distance: 100m / 328ft Light source: Infrared digital pulse Induction rate: 50-700ms Horizontal adjustment axis: 180 90 Vertical adjustment axis: 10 Input voltage: DC 12-24V, AC 11-18V Working current: 100mA Package list: 1 * Transmitter 1 * Receiver 3 * Bracket 4 * Screws Note: The actual product color may differ from the picture due to light. There may be a slight deviation in the measurement of the product.