Anti-theft device from the mechanical to the electronic anti-theft devices, anti-theft devices in the network, this is a transitional process, "car guards - four-wheel lock" anti-theft car alarm system out of the history of the development of China's 8 years since that set 3 Mode: mechanical, electronic / network positioning, electronic key secret. Truly their own car theft, active defense 
 "Car guards - four-wheel-lock" car anti-theft devices 
 Active anti-theft 
 This device is a mechanical, hydraulic, electronic, cryptography and security in one of the leading-edge automotive products. Device starts, through the car braking systems, car wheel lock, even if the criminals get the car keys or completely destroyed Original electronic system, cutting off power supply can not move the car. The remote control system uses encryption technology, unsolvable only be cut, only the owner can be opened or removed. 
 Smart snatches 
 If the car was robbed, the owner just tap the remote start this device, as long as the criminals stepped on the brake, the car can no longer move. 
 Extremely difficult to damage the system 
 Even if completely destroyed the electronic part of the system, cut off all power to the system, it can not start the car. Remote control system uses the system password technology, can not be decoded, only the owner can be opened or removed. If you want to completely dismantle the system, the vehicle braking system that is lost, the thieves did not dare theft; to restore the braking function, need to repair the brake system to be repaired over time and the conditions of various professional skills, criminals can not simultaneously possess them . 
 "Car guards - four-wheel lock" does not require power to maintain security, security control is the most critical parts of the control wheel body, the body are normal in any other place, but the wheels can not move. Mechanical principle as the basis for the design, the brake hydraulic system is a security within the cascade ㄧ host, the password identification method to change the oil passages within the host for the bi-directional and unidirectional, one-way security settings to maintain the brake during the host picked pedal, the brake oil can not return to the anti-theft lock braking effect 
 Car guards - four-wheel lock car alarm: Easy to install, no separate power line interference with the body, then only the battery positive and negative power supply. And the power supply only during the password identification when required to change the location of the body, so the system automatically power off after the operation, security systems to maintain security without the power to function, so damage to power lines and were unable to destroy its anti-theft effect. Better than the market, all the electronic anti-theft devices need power to maintain the effectiveness of security.