Omega Freedom 400 Owner's Manual page 11

Shock Sensor & Prewarning
The Freedom-400 vehicle security system is equipped with a built-in "shock"
sensor which detects impact to the vehicle. As vehicles differ structurally, and
mounting locations of the system control module vary, this shock sensor is easily
adjustable. The shock sensor adjustment is found on the rear of the control module
and siren assembly, below a weatherproofing rubber cover plug. Turning the
adjustment clockwise increases sensitivity, and turning the adjustment counter
clockwise decreases the sensor's sensitivity. If adjustments are made to the
sensor, the rubber plug must always be replaced.
Prewarning Detection: The shock sensor circuit features "prewarning" operation.
When the security system detects a light impact through the sensor, it will respond
chirping three times, whereas a heavy or sharper impact will fully activate the
system, sounding the siren and flashing the parking lights, if these are connected.
Bypassing the Auxiliary Sensor: If desired, the system may be armed, but
without the auxiliary sensor being part of the system's protection. Upon arming,
immediately after the single arming confirmation chirp, simply press and release
the Transmitter's Small Button; the system will chirp the siren once again to
confirm that the sensor is bypassed. When the sensor has been bypassed, it will
not activate the alarm, nor will it have the prewarning operation.
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