Cheap car alarm

When choosing a cheap car alarm you can opt for one with or without an integrated immobiliser and in the UK there are Thatcham or non Thatcham approved alarms. Some cheap car alarms are suitable for DIY installation but all alarms with immobilisers or Thatcham approved should be fitted by a qualified installer.

For the cheapest option a non Thatcham cheap car alarm without an immobiliser is available for quick DIY installation, you only need to connect sensors, courtesy light, siren, power supply and central locking so if you arm the alarm the central locking will lock and cars fitted with automatic window closure will close all windows. If you are unsure about fitting any cheap car alarms you should always contact an approved installer.

A non Thatcham cheap car alarm with an immobiliser should only be attempted by a competent auto electrician because the immobiliser part of the alarm needs to be connected to one of the engines electrical circuit. These cheap car alarms usually only have a single circuit immobiliser and the best engine circuit to use is to cut the starter motor so less power used, cutting the ignition or fuel pump will still draw current for the starter motor.

A Thatcham cheap car alarm without an immobiliser are classed as cat2>1 and are designed for cars that have a cat2 immobiliser already installed, it is cheaper than fitting a full cat1 but must be installed by a qualified fitter. These budget Thatcham car alarms will have basics such as; door, bonnet and boot protection, ultrasonic or microwave interior protection, a self powered siren, remote control central locking and two high security remotes.

A Thatcham cheap car alarm with an immobiliser are classed as cat1 and are designed to go into cars without an existing cat2 immobiliser, you can find out if your car has a cat2 immobiliser by visiting thatcham.org. The specifications of these Thatcham cheap car alarms include a 2 circuit immobiliser, door, bonnet and boot protection, ultrasonic or microwave interior protection, a self powered siren , remote control central locking and two high security remotes.