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Congratulations on buying a new DEFA Car Alarm!
Our more than 40 years of experience in the development of electrical products for motor vehicles,
ensures you that your DEFA AutoSecurity Alarm Module is a long life quality product. Quality control is
at the front of our development and production. Reading this user manual will familiarise you with the
various functions of your DEFA AutoSecurity Alarm Module.
Model versions
DEFA 820 X : Alarm without immobilizer
DEFA 821 X : Alarm with 1 circuit immobilizer
DEFA 822 X : Alarm with 2 circuit immobilizer
DEFA 823 X : Alarm with 3 circuit immobilizer
The models can be delivered with either Glassbreakage Sensor or Microwave Sensor or both. Standard
sirens can also be replaced by a Backup Alarm that is a siren with integral battery and shock sensor. A
Motion Sensor for detection of jacking or towing can also be supplied.
M = Microwave Sensor, G = Glassbreakage Sensor, BA = Backup Alarm, MS = Motion Sensor.
This is how you use your DEFA AutoSecurity Alarm Module
A B
You operate your DEFA AutoSecurity Alarm Module with the two buttons (A and B) on
the remote control. They are easy to distinguish, because the A button has a clear bump.
Short press means that you press for a maximum of 1 second. Long press means that
you press for a minimum of 2 seconds.
Turning ON the alarm (arming)
Short press on button A. The car's direction indicators flash once, confirming that the alarm has been
turned on. The LED lights for 20 seconds before it begins to flash. This confirms that the alarm and the
Glassbreakage and/or Microwave Sensors are on.
Temporary disconnection of sensors:
You can also turn on the alarm without activating the sensors that register motion in the interior of the car,
blows against the windows, etc. This may be necessary if, e.g. a dog is left in the car.
Turn the ignition ON and OFF within 2 seconds. Leave the car, and turn the alarm on. The LED begins to
flash straight away and the indicators will light longer than normal (about 1 second). After alarmrejection
and if the ignition has been on for longer than 2 seconds, the sensors will again be active the next time
you turn the alarm on.
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