?Easy to Install?- The installation of this intelligent circuit cut off tool is very simple, you can DIY, directly unplug the oil circuit fuse in the engine compartment of the car, and plug our main unit directly into the replacement to complete the installation. Just fix it and cover the engine cover and you can use it. Please place the original fuse in a safe place. ?Upgrade Car Immobilizer?- This is a new type of auto anti-robbery device. Compared with other similar products on the market, the M506 wireless engine lock has a relatively new design. The main unit is smaller, the remote control is lighter and thin, and the new micro-electric technology brings you more safety. ?Anti-Robbery Mode?- (The host inserts a short-circuit ring) When the host receives the signal from the remote control, the car can start normally, and it needs to continue to receive the signal from the remote control in the middle, otherwise, it will turn off after 30 seconds if the the signal is not received. The remote control in anti-robbery mode must turn on the automatic mode, otherwise, it will turn off halfway due to no signal received. ?Circuit Hidden Lock Mode?- (No short-circuit ring is inserted in the unit inside) factory default mode. If the car does not receive the signal from the remote control within 16 seconds after starting the car, the engine will turn off. The car can start normally if it receives the signal from the remote control within 16 seconds of starting. Even if it no longer receives the signal from the remote control, it will not turn off. ?Anti-Theft Alarm System?- The remote control of this 12 V car immobilizer comes with an Auto-sensing function, no need to operate it, you can hide the remote control in your wallet or other hidden places, so no one will notice, and even your closest friends don't know that you have installed new products and technology, you can refuse gracefully borrowing cars from others or preventing thieves from stealing cars, provides a safe guarantee for your car.