4 Doors Central Lock Kit, Universal Car Central Power Door Lock/Unlock Kit Remote Locking Security System DC 12V Remote Central Lock Transform your manual door locks into automatic ones with this 4 door car central locking kit. Remote Central Lock is compatible with vehicles that have a DC 12V power supply and do not already have a central lock system. Includes all necessary mounting hardware and wiring harnesses. The remote controller allows you to lock and unlock all 4 doors simultaneously with the Arm/Disarm button, making it easy to install and operate. Features: Water resistant 360° rotatable motor head, smooth and block preventing 1 master and 3 slave actuators with powerful and durable motors Includes 2 remote controls for single or double control All fittings included: rods, clamps, screws & brackets Warm Tip: Before installation, ensure compatibility with your car door structure and verify it won't affect the original window operation. After installation, roll up and down the windows to check for any interference. Avoid exposing the main unit and remote control to water, sunlight, or high temperatures. If the remote control range decreases or the LED dims, replace the remote control battery. This product does not include alarm or parking light flashing functions. Specifications: Power Supply: DC 12V Stretch Distance: 18mm Tensile Force: 32N Module Circuit Current: Max. 81mA Endurance Life: 100,000 times Package Includes: 1 x Main control unit 1 x Master actuator 3 x Slave actuators 4 x Metal brackets 4 x Metal rods 2 x Remote controls 1 x Set of wiring harness 1 x Set of installation parts (screws, brackets, adhesive, etc.) 1 x Instruction manual