Car Alarms: Sigma M30 Thatcham Cat 1 alarm going off randomly., sigma m30 alarm, mitsubishi gto

Question
Hi.
i recently bought a Mitsubishi GTO with a Sigma M30 Alarm fitted. Unfortunately, it has been going off randomly for no apparent reason, there is nothing that is dangling or that will move and it has even done it in the middle of the night, then after turning the alarm off and rearming it. I sat at the window and watched it to see if anyone was messing with my car, it still went off with absolutely no-one anywhere near it.

This is really puzzling me. Any help would be greatly appreciated as the sleepless nights are killing me.

Cheers, Daniel

Answer
Not certain of the system, but MOST knock/impact
sensors have a wheel inset into it to turn up or down
(counter clockwise is down).

Locate the sensor under the dash and turn down or
simply unplug it. Should be a little oblong box
wire tied up high under the dash, and would
blink when it detects vibration.

Good luck.

ALARMTEK