1. This Motion Sensor Alarm is ideal for protecting your property against unwelcome intruders. 2. It can be positioned 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 motion sensor that will activate the alarm if any movement is detected. 5. Suitable For: Front Door, Back Door, Garage, Shed, Outbuildings. Installation requirements: The remote control infrared siren has the highest infrared detection sensitivity when the human body moves horizontally relative to the lens, and vertical movement sensitivity is lower. Proper angle and height during installation significantly affect the protection area. Avoid positioning the infrared siren to directly face the door. The remote control infrared warning device should have a clear line of sight to the protection range with no obstacles. The remote control infrared warning device should be installed at an angle of 10-30 degrees from the wall for maximum detection distance. Adjust the angle as needed based on actual conditions. Installation method: 1. Fix the gimbal seat approximately 2 meters from the ground. 2. Open the battery cover and install 4 x AA batteries according to the markings inside the battery compartment. 3. Attach the remote control infrared siren to the gimbal seat and adjust its position to meet installation and detection requirements. Specifications: Color: As Shown Material: ABS Powered by: 4 AA batteries (Not Included) Sound Output: 105dB Viewing Angle: 110 Degrees Detection Range: 3-5 meters Product Size: 12.3 x 8.8 x 5cm Built-in PIR motion sensor Wireless design Adjustable wall mounting bracket Method of use: 1. Insert the batteries. Press the remote control; the device emits a 'beep' sound and the green light turns on, indicating the alarm is ready to operate. 2. After activation, the infrared alarm enters a 15-second standby delay with the green light on. If no motion is detected within this time, the system becomes active. Users must leave the detection area within these 15 seconds. 3. After the 15-second delay, if someone enters the detection zone, the red light flashes for 5 seconds. During this period, the user can disable the alarm using the remote control. If no signal is received within 5 seconds, a 30-second loud alarm sound activates at 105 dB. After a 15-second pause, if motion is detected again, the alarm will reactivate, repeating this cycle. 4. When the infrared siren is sounding, use the remote control to deactivate the detection circuit and stop the alarm. Note: There might be slight color variations due to different monitor resolutions. Slight measurement differences may occur due to manual measuring. Package included: 1/2/4 x Home Security Alarm 2/4/8 x Remote Control Key Rings