SPY reliable one-way car alarm offers security protection for the vehicle. The device will alert when the intruder attempts to hit the vehicle or open the door. Even if the thief breaks into the vehicle, they cannot start the engine. The car alarm includes all the basic functions we meet in the industry, such as dome light delay, power-off memory, intruding reminding, engine immobilized, shock sensor bypass, valet mode, etc. There are diverse and unique transmitters for your selection.