Security Emergency Siren Detector, Compact Singal Radiation Beam Door Window Infrared Detector Alarm for Apartment Dorm Room Home Office Security(1 * Transmitter+1 * Receiver)

• ADJUSTMENT FUNCTION: Four-channel frequency adjustment function, suitable for installing piles at the same place. Optical anti-interferencia Housing specialties. Intelligent adjustment, which can obtain information more accurately and improve information accuracy.
• HIGH-CAPACITY ANTI-RFI / EMI: A unique design with a high-capacity RFI / EMI-resistant digital filter circuit. The outer detector looks small and beautiful.
• IP55 SEAL DESIGN: Unique IP55 seal design for rain protection (FOG), dust (worms) and other comprehensive weather conditions, can keep up and running in harsh environments, so you can feel at ease.
• WIDELY USED: The products are widely used in various alarm systems, access control systems, and can be used in hotels, hotels, schools, offices, factories. Easy to install, we have special screws, just need to install according to the user manual.
• QUALITY ASSURANCE: Made of high quality ABS material, durable, if you have problems with our products, or if we have problems with the installation, you can always ask me, we will be happy to answer you until you are satisfied.

Features: Unique design of the Circuit of Digital Filter with High Capacity anti RFI / EMI. Small and beautiful appearance for the Infrared detector. Optical antiinterferencia Housing Professional. Functions of frequency adjustment of four channels, suitable for the installation of pile in the same place. Widely used for Alarm System, Access Control System, etc. IP55 Sealed Design for anti Rain (FOG), Dust (Worms) and other Integrated climatic conditions, can maintain normal operation in a tough environment. Specifications: Color: Black Material: ABS Quantity: 1 pcs Operating Voltage: 9 ~16 V DC / AC Warning: 20 m distance INPUT CURRENT: 20mA 18ma - T - R; Frequency: 38 kHz  Relay output: N.C. / N.O. Wavelength: 940nm Humidity: 95% - 5% RH Operating Temperature: - 25% + 55% Size: 69.5*26.4*22.5mm/2.7*1.0*0.9 in Package Weight: 69g/2.4oz Notes: 1. There may be an error of 0 - 1 cm due to manual Measurement. Make sure that you don't Care before you BID. 2. Due to the difference between different Monitors, the picture may not reflect the actual color of the article. Thank you! Package List: 1 * Transmitter 1 * Receiver 1 * User Manual 8 * Screw