description: Features: The anti-theft motion detector infrared sensor alarm is designed to notify home and business owners of people or vehicles entering the room. Integrated structure, suitable for all types of weather, completely sealed (anti-fog), dust-proof (worm), etc. work normally in harsh environments. Stable characteristics and high reliability. Precise design, easy to install Made of durable materials, corrosion and wear resistance. specification: Color: Black material: plastic Receiver parameter range: 20m Infrared emission frequency: 1.92 khz Input power: DC / AC12-24V Wavelength: 940nm Input current: RX15mA-TX30mA Incident angle: Less than 10 Working environment: -20~70 degrees Celsius Maximum load: 1Amax30V Package Contents: 1 x Anti-theft alarm Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.