Description:When the PIR sensor detects human movement the alarm will sound alerting you to a potential attack on your home or an intruder. The motion sensor alarm protects your valuables without the need of fussy wiring or power cables. And the PIR detection range of up to 5 meters.Features:This Motion Sensor Alarm is perfect for protecting your property against unwelcome intruders.It can be situated to cover the front door, back door, garage, shed, outbuildings etc. It features a built in PIR motion sensor that will activate the alarm if any movement is detected.It is simple to fit, there are no wires required, just put the required batteries in, fix to a suitable surface.When the PIR sensor detects human movement the alarm will sound alerting you to a potential attack on your home or an intruder.Specifications:Detection range: Distance of 3-5 meters, angle of 105 degreesWorking voltage: DC 4.5VAlarm sound level: 105dB (decibel)PIR detection range: 5 metersPower: 3 x AA battery (not included)Color: WhiteSize: 136 * 105 * 27mm / 5.3 * 4.1 * 1.1inchMaterial: PlasticPackage weight: 160gInstallation Requirement:1. Since the motion sensor alarm has much higher infrared detection sensitivity when human body moves laterally with respect to the lens, please pay attention to the angle and height of the detector horizontal plane during installation, which has a great influence on the protection zone.2. During installation, please keep away from the hot and cold sources, such as hot and cold air outlet, air conditioning outlet, heater, air cooler, etc., to avoid direct door.3. The detection area can not have obstacles.4. The angle between motion sensor alarm the wall should be10 to 30 degrees. At this point, the detection distance is farthest. Instructions:1. The standby time is 20 seconds after power on and the motion sensor alarm will not detect signal within the 20 seconds, so you must leave the electronic leave detection area within 20s.2. 20 seconds later, if a person enters the detection area, the motion sensor alarm will have a delay of 5 seconds. This will facilitate the identification of the owner. After 5 seconds, if no correct password is received, there will be a alarm sound of 30 seconds. The alarm volume is 105 DB. 5 seconds after the alarm sound is over, if another person comes into the detection area, it will alarm again and again.3. During alarm, you can enter the correct password to end the alarm.Package List:1 x Wireless Motion Sensor AlarmNote:1. It is recommended that you regularly check the motion sensor alarm to make sure the work is normal, to avoid missing alarm.2. When the power-on indicator is dark at startup, the alarm sound becomes smaller, and the false alarm rate of the infrared alarm is high, the battery voltage is generally insufficient, and the battery should be replaced in time.