1. This Mo-tion Sensor Alarm is ideal for protecting your property against unwelcome intruders. 2. It can be situated to cover the front door, back door, garage, shed, outbuildings etc. 3. It is also suitable for use on caravans and motorhomes. 4. It has a built in PIR mo-tion sensor that will activate the alarm if any movement is detected. 5. Suitable For:Front Door, Back Door, Garage, Shed, Outbuildings. Installation requirements: Because the remote control infrared siren has the highest infrared detection sensitivity when the human body moves horizontally relative to the lens, and the vertical movement sensitivity is poor, the installation should pay attention to the angle and height of the detector's horizontal plane, which has a great influence on the pro-tection area. Avoid the infrared siren to be avoid directly facing the door. The remote control infrared warning device should be able to see directly to the range of pro-tection, and there should be no obstacles. Remote control infrared warning device should make an angle of 10-30 degrees with the wall, at this time, the detection distance is the farthest, the actual installation according to the situation to adjust the installation angle. Installation method: 1Fix the gimbal seat about 2 meters from the ground. 2. Open the battery cover and load 4 x 7 batteries according to the marking inside the battery box. 3. Fix the remote control infrared siren on the gimbal seat, turn the infrared siren to make it meet the installation requirements and detection needs. Specifications: Color: As Shown. Material: ABS. Powered by: 4 AA batteries (Not Included) Voice: 105dB Viewing Angle: 110 Degrees Range: 3-5 meters Size: 12.3 x 8.8 x 5cm Built in PIR mo-tion sensor. Wireless. Adjustable wall mounting bracket. Size: Method of use: 1. Load the batteries. Press the remote control, the machine issued a 'beep' sound, while the green light is on. On behalf of the alarm is ready to enter the working state. 2. Remote control infrared alarm in the green light on the 15-second standby delay, 15 seconds does not detect the alarm signal, you must leave the detection area of the electronic dog in the 15 seconds. 3. After 15 seconds, if a person enters the detection area of the infrared warning device, the red light flashes for 5 seconds. In this 5 seconds delay time, it is convenient for the owner to turn off the alarm with the remote control. 5 seconds later, if no signal is received from the remote control, it will send out a 30-second ear-splitting alarm sound, the alarm volume is 105 DB. 15 seconds after the end of the alarm sound, if there is a person who touches the remote control infrared alarm, it will be alarmed again, and so on and so forth. 4. When the remote control infrared siren alarms, you can use the remote control to turn off the detection circuit to end the alarm. Note: There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package included: 1/2/4 x Home Security Alarm 2/4/8 x Remote Control Key Rings