Features: 1Wired infrared detector using dualdoublet rectangular infrared sensor low noise high sensitivity. 2Support 2level automatic pulse number adjustment temperature compensation and metal shielding. 3With a red LED alarm display it will continue to flash for 3 seconds to alarm and good antitheft performance. 4Ceiling type infrared detector easy to install novel and unique with distinct decorative effect. 5Supports internal 465 selfchecking procedures suitable for community antitheft use and strong practicability Specification: Condition: 100% Brand NewItem Type: Ceiling Infrared DetectorMaterial: ABSPower Input: 9-16Vdc 18mAStarting Time: 60 Seconds after power onDetection Speed: 0.2-7m / 0.7-23ft per secondSensitivity: 2 Levels AdjustableWorking Temperature: -10-50Anti-White Light: Anti-White Light InterferencePartition: 12+12+12+12+6+1=55Alarm Display: Red light-emitting diode continuous light for three secondsAlarm Output: Normally Open 28VDC 0.15AProtection Range: 7.5 x 6m (Installation Height: 2.4m / 7.9ft)Weight: Approx. 94g / 3.3ozProduct Size: Approx. 10.5x10.5cm / 4.1x4.1in Package List: 1 x Ceiling Infrared Detector Note: 1.Pleaseallow0-1incherrorduetomanualmeasurement.Thanksforyourunderstanding.2.Monitorsarenotcalibratedsameitemcolordisplayedinphotosmaybeshowingslightlydifferentfromtherealobject.Pleasetaketherealoneasstandard.