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100% Waterproof 180 degrees protection Anti-collasion, 180 degrees protection, when arm meets out-forces, it will reposition automatically, LED will flash and alarm noisy until out-forces disappeared Anti-crush of 5 tons truck Fully Alluminum alloy die-casting housing(5mm thickness) Special Material Made Arm Special material made arm, anti-corrosion, strong, durable, impact resistance, abrasive resistance, springy, anti-deformation Anti-Theft Design, Long range remote control 1. Functions & Features: 1. Energy-saving; the battery performs very good and the power saved inside will last half a year. 2. Safe; the power connection is anti-disconnecting design in case that the user misplaces the battery causing short circuit; battery installation is easy. 3. Durable; the cabinet is made of die-casted Zinc alloy with high quality, and the maximum weight of load-bearing is 5 tons; the cabinet is coated with varnish, being water-proof and anti-rust in harsh weather. The sway arm is made of fiber-reinforced nylon, and it will not deform even after car crushing. 4. Hermetic; the cabinet is tightly closed, and Protection Grade is IP68. It is waterproof and dustproof. It can be used broadly. 5. Auto-repositioning; the external force could not change the sway arm position when it is vertical; when the sway arm is forced to a horizontal position, it will reposition vertically, unless the user uses remote control to put it horizontally. 6. Noise-free; bearing transmission design of the motor makes almost zero noise. It is beneficial for battery and motor longevity and lesser friction. 7. Burglarproof; the mounting bolts are placed inside of the cabinet. No one can open it without key. 8. Easy Installation: four prepared holes at the bottom of the cabinet makes it easy to install. Specifications: Voltage: DC12V Battery: DC12, 7Ah Dimension: 357×370×82.5mm Current: 0.4A Running Time: 4~6s Extended Height: 340mm Remote Distance: >15M Working Temperature: -35°C~+55°C Weight Born: 5t IP Class: IP68 Specificatation details 1. Dimension: 550*120*100mm Thickness: 3.5mm 2. Aluminum die-casting alloy can resist heavy car pressure. 3. Colorfast and ultraviolet-proof high hardness electrostatic spraying process is not debonded. 4. 3M warning reflective film is colorfast and not easy to be debonded.