Alpine SEC-150R - Manual (Page 36)

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Dual Stage Impact Sensor
Operation
The dual stage impact sensor detects impact
to the vehicle. Like the radar sensor, the
impact sensor incorporates two different
coverage levels. If a light impact is placed on
the vehicle, the system will chirp the siren
and flash the lights twice to warn those
around the vehicle to step away. If a heavy
impact is placed on the vehicle, the system
will enter an alarming state. For increased
flexibility, the pre-warn chirps and the pre-
warn coverage can be turned on and off as
desired.
Note: Flashing parking lights may be
optional. Consult your Alpine dealer
for more information.
Radar Sensor (SEC-150R) &
Impact Sensor Operation