几种汽车防盗系统：
Several car anti-theft systems:
一、转速锁
1、 Speed lock
在换挡杆位置加装转速锁，使汽车无法变换挡。泊车后把换挡杆推入空挡或倒车挡后锁定，窃车者无法操纵汽车正常行驶。
The speed lock is installed at the shift lever position, so that the vehicle cannot change gears. After parking, push the shift lever into neutral or reverse gear and lock it. The thief cannot operate the car normally.
二、特殊防盗锁紧装置
2、 Special anti-theft locking device
以汽车附件防盗为主。如汽车轮胎、备用轮胎、汽车后箱等部位必须加装防盗装置。特殊防盗锁紧装置，简便又可靠，如防撬门锁、特殊锁紧螺母等，非常实用。为了使汽车万无一失，应综合使用汽车防盗装置。另外一定要到专业安装店去安装防盗系统，以免劣质产品和不规范的安装造成丢失事故。
Mainly anti-theft of car accessories. For example, anti-theft devices must be installed on the car tires, spare tires, car trunk and other parts. Special anti-theft locking device, simple and reliable, such as anti prying door lock, special lock nut, etc., is very practical. In order to make the car safe, the anti-theft device should be used comprehensively. In addition, we must go to the professional installation shop to install the anti-theft system, so as to avoid the loss of inferior products and non-standard installation.
三、防盗联合锁
3、 Anti theft combination lock
也称防盗加固器，是一种特制防撬弯柄锁，两端带有弯头的钢制环形装置，停车后用它把方向盘与离合器、制动踏板联锁在一起，即使窃贼进入车内，启动引擎，坚固的联合锁使汽车只能原地空转，不能起步。
Also known as anti-theft reinforcement device, it is a special anti-skid bent handle lock with steel ring device with elbows at both ends. After parking, it is used to interlock the steering wheel with clutch and brake pedal. Even if the thief enters the car, start the engine, and the strong combination lock makes the car only idle in place, not start.
四、多功能防盗系统
4、 Multifunctional anti-theft system
汽车防盗技术的日益成熟，使多功能防盗成为高级轿车防盗的首选装置。一套先进的防盗系统，在窃车者触动汽车、进入车内、启动引擎等驾驶车辆中的任一环节，都能报警并主动"熄火"使窃贼无法得逞。多功能防盗系统的种类较多，如"信用卡"系统，拔出操作卡，车内3个独立电路就会切断。工作人员指出，另一类微电脑跳码汽车防盗器，功能齐全，防范严密。新近开发的汽车智能电控防盗锁，能自动设置随机密码，一次一密码，同时具有防止解码的功能，使窃车贼一筹莫展。
With the development of automobile anti-theft technology, multi-function anti-theft becomes the first choice of anti-theft device for advanced cars. A set of advanced anti-theft system can alarm and actively "shut down" the thief at any link of the vehicle, such as touching the car, entering the car, starting the engine and so on. There are many kinds of multi-functional anti-theft systems, such as the "credit card" system. When the operation card is pulled out, three independent circuits in the car will be cut off. The staff pointed out that the other kind of micro-computer skip code car anti-theft device has complete functions and strict prevention. The newly developed car intelligent electronic anti-theft lock can automatically set random password, one password at a time, and has the function of preventing decoding, which makes the car thief helpless.