This device mainly used indoors adopts infrared detection + intelligent volume recognition technology to effectively prevent pet interference and false positives. It is principally paired to use with the alarm host via wireless 433MHZ signal. When the device detects an intruder, it immediately transmits the wireless 433MHZ signal to the alarm host so that the host immediately transmits alarm information after receiving the immediate transmission.Features:Unique intelligent detection technology, wireless 433MHZ alarm transmission to avoid pet interference. Large detection range, 110 wide detection angle , maximum coverage area 12 *12m. Fresnel optical lens effectively prevents false positives and false negatives. Lower window technology effectively overcomes the traditional detectors shortcoming of no alarm for crawling intrusion. Super anti-white light 6500lux enables to alarm even under the interference of white light. Dual infrared + intelligent volume recognition + mirror type + artificial intelligence quadruple technologies, dual lens, dual temperature compensation technology. Intelligent recognition technology, low standby current, 2 universal AA batteries can sustain long service life for more than 2 years without changing batteries. Wall-mounted installation and special plug-in installation design, flexible to use and easy to install. Specification:Condition: Brand NewMaterial: ABSDetection Distance: 12mDetection Angle: 110Maximum Coverage Area: 12m * 12mAnti-white Light Intensity: 10000LuxPet Immune: 25KGTransmission Distance: 150m (open space)Working Voltage: 3V (2 AA alkaline batteries) (not included)Standby Current: 8AAlarm Current: 15mAWireless Frequency: 433MHZ (1527)Alarm Indicator: Long bright for 3 secondsWorking Environment: Indoor, outdoorTamper Switch: Normally closedAlarm Output: Alarm report, tamper reportInstallation Method: Wall hanging (adjustable direction)Size: Approx.105*55*45mm/4.1*2.2*1.8inPackage List:1 * Detector1 * Mounting Bracket1 * Screw Bag1 * User Manual