autohälytin

Autohälytin, commonly known as a car alarm, is an electronic device designed to deter theft and vandalism of motor vehicles. It typically consists of a siren or horn that emits a loud sound when triggered, along with various sensors that detect unauthorized entry or movement.

The primary function of an autohälytin is to alert the owner or bystanders to a potential security breach. Modern systems can also notify owners remotely via a mobile app or pager, providing information about the vehicle's status and location.

Autohälyttimet are activated and deactivated using a key fob or by entering a code. They employ a range of sensors, including door and trunk contacts, shock sensors that detect impacts, and motion sensors that monitor interior movement. Some advanced systems also incorporate tilt sensors to detect if the vehicle is being lifted or towed.

The effectiveness of autohälyttimet can vary. While they can deter opportunistic thieves, determined individuals may find ways to bypass them. Despite this, they remain a popular security feature for many vehicle owners, offering a visible deterrent and an audible alarm. Installation can be done by the vehicle owner or by a professional installer.