Ultrasonic Sensor; Optional Features - AVS C5 Owner's Manual

Ultrasonic sensor

An ultrasonic sensor is included with the AVS C5 and C4 (if your car
does not already have this as standard) and can be fitted to the AVS
C3 for an additional charge.
This sensor triggers the alarm if a change in air pressure or
movement is detected in the vehicle. It does this by transmitting
ultrasonic sound waves (like a bat's sonar) around the interior of the
vehicle. It provides a high level of protection for the cabin of the car.
Remember to ensure all entry points such as windows and sunroofs are securely shut
because air movement will trigger the sensor. Also do not leave animals or children
inside the car with the alarm armed unless you use Arming with sensors disabled.

Optional features

Optional features are dependent on the systems already in your
vehicle. Not all features are available on all vehicles. Some
features may require additional parts and/or additional installation
charges. Features are subject to change. Please check with your
AVS installer.
Avs cAn-bus remote
Your AVS alarm can be operated from a separate AVS CAN remote
on selected vehicles rather than your car's factory remote. This
can be a more affordable option compared with purchasing an
additional or new factory remote.
window roll uP
This feature shuts all the windows of the vehicle when the alarm is
armed from the car's factory remote.