Arguably, the best car security system is the one that fits your needs best. There are a lot of choices out there, at different price ranges, but not everyone will need or want a car alarm with 2-way and GPS capability. However, there is a minimum standard for automotive security systems to have in order to do their job of deterrence properly. Let's face it, it's an accepted fact that if a dedicated thief wants your car badly enough, he will most likely be able to steal your possession. What we can do is buy the best car alarm that our budget allows and take a few precautions that will help ensure the safety of our car.
For a car alarm to work, it needs sensors to monitor the environment in and around the vehicle. There are proximity sensors, which detect movement close to the vehicle, glass breakage sensors and shock sensors which detect blows or impacts to the vehicle and can discriminate light impacts from heavy ones. Sensor quality is a big issue, because sensitivity, discrimination and reliability are important factors to consider between brands. It's easy to compare two brands with the same types of sensors but you will have to ask around whether the cheaper brand will not constantly trigger false readings or will work reliably a year or two down the road. Immobilizers are a very important feature because when it is triggered, the thief cannot drive away with the car. Unfortunately, inferior systems also have the tendency to immobilize the legitimate driver of the car. Car alarms now also offer active or passive arming. Passive arming means that the alarm system will turn itself on automatically after a preset time when the driver leaves the vehicle. Active arming requires the participation of the driver to arm the system.
Other features of good security systems are panic buttons, which are practically standard on alarm remotes nowadays, remote start, which is convenient, specially in cold climates but are not a necessity, auxiliary channels, which are electrical outputs controlled by your remote, and which can be connected to other systems in the car, allowing them to be operated by remote control. Speaking of remotes, the best car alarms provide a minimum of 2 remotes per system.
In looking at car alarms, be aware of features like encryption type and progressive unlocking. A good encryption system will prevent code grabbers from learning the system codes that deactivate your car alarm. Progressive unlocking unlocks only the driver's door initially, to prevent thieves from getting into the car with you when you disarm your alarm system. Choosing the best car alarm can be a bewildering experience. Do your research and ask around for user's experiences so that you can get the best value from the system you have selected for your vehicle.
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