Feature: 1. Metal Shell: The aluminum alloy shell is fully sealed, dustproof, waterproof, insect proof, moisture proof and disassembly proof, with stronger environmental adaptability and protection grade of IP67. 2. Easy to Use: The front cover is of pull out type. After the laser equipment is fixed, the front cover can be pulled out directly. After exposing the main board, the functions such as orientation and alarm duration can be adjusted. 3. Debugging Method: Each group of laser modules is composed of two laser heads, one visible light and one concealed light. During debugging, the visible light is started by pressing the key to facilitate alignment. The visible light is automatically extinguished in five minutes to reduce the debugging time. 4. Multi Features: It has the characteristics of long detection distance and strong penetration. It can be set to block single beam and double beam alarm functions. 5. Strong Adaptability: It can adapt to rain, fog, frost, snow, dust and other bad weather. The laser beam is concentrated, the anti‑interference ability is strong, and the false alarm rate is very low. Specification: Item Type: Laser Intruder Alarm System Material: Shell: Aluminum Alloy Base: Aluminum Alloy Product Size: Approx. 65 x 65 x 720mm / 2.5 x 2.5 x 28.3in Weight: Approx. 5300g/187oz Laser Wavelength: 808nm Warning Distance: 0 to 500m Warning Level: Double layer warning, and can be set to block single beam alarm or two adjacent beam alarm Rated Power: 6W Receiving End, 10w Transmitting End Equipment Power Supply: DC12V-24V AC9V-18V Host Backup Battery: Lithium Battery 12V, 6000mah (Shipped With Built In Battery) Laser Beam Finder: 4 x AAA Dry Batteries (Delivered Without Batteries) Alarm Input: Two Normally Closed Switch Input Alarms Can Be Connected Alarm Duration: 3S, 30S, 45S, 60S（Adjustable) Laser Type: CLASS I Safety Laser Light Source Transmitting Angle: <3° Receiving Angle: >10° Beam Adjustment Angle: Horizontal: ±30° Vertical: ± 30 ° Response Alarm Duration: 25MS,50MS,100MS,200MS,300MS (Adjustable) Suitable: for Villa Installation, Railway Installation, Community Installation, Kindergarten And Other Places . Package List: 2 x Laser Intruder Alarm System2 x Adapter2 x Base1 x Manual8 x Accessory1 x Laser Beam Light Finder Note: Avoid installing on the wall that is not firm, cracked or easy to loosen.Avoid installation in places with serious dust or pollutants.Avoid installation in areas where the power supply is seriously unstable or frequent power failure.Avoid installing in places where the beam may be blocked due to the influence of season, trees, grass and other factors.