Directed Avital 2 Way LCD Security System
The quality and reliable Avital 3300 is made by Directed Electronics, the same company that produces the Viper and Python car alarm models. This basic alarm system might be affordable, but it comes with a full feature set, including keyless entry and remote start.
The shock sensors will cause the six-siren alarm to sound should anyone attempt to tamper with the vehicle by pulling on door handles, breaking windows, or trying to lift it up. When the alarm sounds, an alarm on the LCD remote will also sound and show which part of the car is being tampered with. The lack of a silent mode is irritating, but can be overlooked at this price.