Car Security Guides

Most new cars these days come with a remote entry device on a key chain. These remote entry devices also have the owner of the car pondering several questions such as what really happens when pushing the buttons, how can this device unlock the door from various distances and of course, how secure is this device if everyone has one? The answers to these questions lie with the remote entry devices themselves. There are two very common ones nowadays. They are the one that is one the key chain that is responsible for the locks on the car and one that fits on the sun visor of the car that opens a garage door. Home security systems also come with one, but these devices are not very common yet.

The first two mentioned the remote entry device on a key chain and the one used to open the garage door are actually small radio transmitters. When a button is pushed on the device a transmitter is turned on and a code is sent to the receiver. This receiver is either in the car or in the garage, depending on the remote entry device that is being used. The receiver located in the car or garage is tuned to the frequency that the transmitter is using, which is usually 300 or 400 MHz. (more…)

Car alarms are one of the most under appreciated pieces of technology around today. The problem stems from car alarm owners that let their vehicle’s alarm go off until the preprogrammed time expires and the alarm resets itself. This causes most people to ignore sounding car alarms and consider them annoying noisemakers.

However, when you hear a car alarm going off, it is usually due to improperly adjusted impact sensors. The impact sensor is the most common and most problematic sensor. This is a device that senses vibrations which could be caused by someone attempting to break in. These impact sensors have an adjustable sensitivity setting. Often, these sensors are left with the sensitivity set way too high. This condition can cause a car alarm to go off, for example, if another car drives past or if someone bumps his or her car door lightly. To ensure your car alarm’s impact sensor is set properly, remember this rule. It should take a good hard slap to set off the alarm. If the alarm goes off by just bumping your car, the impact sensor requires adjustment. It is necessary for equipment installers to ensure that every impact sensor is not set to sensitive, since this will cut down on the number of false alarms. (more…)