Mugast PIR Motion Sensor Alarm Password, Wireless Home Security Keypad Remote Infrared Detectors for Cover The Front Door Back Door Garage Shed Outbuildings, etc

Specifications: Detection range: Distance of 3-5 meters, angle of 105 degrees Working voltage: DC 4.5V Alarm sound level: 105dB (decibel) PIR detection range: 5 meters Power: 3 x AA battery (not included) Color: White Size: 136 * 105 * 27mm / 5.3 * 4.1 * 1.1inch Material: Plastic Package weight: 160g Installation 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. Package List: 1 x Wireless Motion Sensor Alarm Note: 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.