Which Car Alarm To Choose?
Features to look for when shopping for a Car Alarm are:
Active Re-arm: After the alarm has been disarmed the system will automatically re-arm after a specified amount of time if a door is not opened. This is to prevent accidental disarming by the remote transmitter.
Air Horns: These are used on the interior or exterior to call more attention and cause pain to the thief if he makes it into the interior of the vehicle.
Anti-Code Grabbing: A method employed to change the Car Alarm code with every arm/disarm. The purpose of which is to defeat code grabbing equipment that can capture and resend your code to disarm the alarm at the thief's leisure.
Arm: The act of turning the alarm to an active state.
Brain: The main box of the alarm that controls all of the sensors and connected equipment.
Carjack Protection: A feature that, when activated, will cause the engine to turn off and the siren to blare. Used when a vehicle is taken forcefully from the owner.
Channels: The number of outputs an alarm has that may be controlled by the transmitter.
Disarm: The act of turning the alarm to an inactive state.
Dome Light Illumination: A feature that will turn on the vehicle's dome light when the alarm is disarmed.
Door Lock/Unlock: A feature that allows the power locks on a vehicle to be operated by the alarm.
Emergency Disarm Switch: A hidden switch used to disarm the alarm in case of an emergency.
Flashing Lights: When an alarm is triggered, the lights or parking lights will flash. Also when the car is armed or disarmed the lights will flash one or more times for confirmation.
Ignition/Starter Kill: A feature that disconnects the ignition/starter when the alarm is armed.
Key-in Features: Any number of features that activate when the key is put into the ignition of the vehicle.
LED: Standing for light emitting diode, it is a small light emitting device that is placed in the interior of a vehicle to warn thieves of the alarm's presence.
Microwave Detectors: A type of proximity sensor that triggers when an object enters the sensors zone of protection. These sensors are very popular with open vehicles such as convertibles and Jeeps.
Paging: Some alarms have a feature that can send a signal to a supplied pager when the car alarm is triggered.
Pain Generators: An interior device such as an airhorn, the purpose of which is to be so loud as to cause pain to the perpetrator.
Pin Switches: A switch most often used on doors, hood or trunk. These switches make or break an electrical connection when their zone is opened, sending a trigger signal to the alarm brain.
Relay: An electromechanical switch that, when triggered by a low current signal, activates a connection, allowing a much larger current to be used than if a relay was not present.
Remote Start: The ability of an alarm to start a vehicle from a remote distance. Especially useful in winter or summer to pre-warm/cool the interior.
Siren: The device on a car alarm that is heard when the alarm is triggered. These are usually mounted in the engine compartment.
Smoke Generator: A device that, when triggered by an alarm, fills the interior with harmless smoke, further inhibiting a thief. These were semi-popular at one time but I believe they have all been discontinued.
Strobes: A highly intense light that is used to further call attention to a vehicle when the alarm is triggered.
Tracking: Some alarms have a built in device that allows the vehicle to be tracked should it ever be stolen. LoJack is an example of this.
Transmitter: The small device, usually on a keychain, used to arm/disarm and control the alarm.
Trigger: A signal that is sent to the alarm brain from the sensors, activating a response within the brain.
Trunk Release: A feature that will open the power release trunk, useful when hands are full with groceries or other items.
Valet Switch: A hidden switch used to disable the alarm temporarily.
Window Roll-up Module: A unit that will roll the power windows up on a vehicle when the alarm is armed.
Zone: An area of the vehicle that is protected by a sensor of some kind.
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