If I put this in the trunk of my car would it go off if someone be tried to get under the car to saw off the catalytic converter?

Sure but it won't be heard because the sound would be greatly muffled.

Does it work if you have it on a car door and someone opens the door?

Terrible sensitivity!! Someone can open your door, get in, close the door and it WILL NOT alarm! If they get in and SLAM the door closed, it will work then. It needs to be within 3 feet to actually work! I know, I've tried it! Junk! I will say, the remote works well [within about 6 feet] and the alarm is quite loud!

If one remote could control many alarms, where can I buy another alarm?

We are sorry, but alarms alone are not available at present.

if someone keeps moving my side view mirrors will it go off?

The alarm is quite sensitive. Whether or not it will go off if someone moves your side mirror depends on where you place the alarm and how strong their movement of the mirror may be.. I put mine in the side pocket on the driver's door. It will go off if someone opens the rear hatch door, also if someone rattles the front door latches. It was well worth the $ and I would quickly buy another.

Item Weight	2.08 ounces
Product Dimensions	3.5 x 3 x 0.8 inches
Item model number	4331021098
Batteries	2 AAA batteries required. (included)
Is Discontinued By Manufacturer	No
Wireless Remote	Yes

110db Motorcycle Alarm with Remote Control Wireless Vibration Anti-Theft Bike/Motorbike/Vehicle Security Alarms, Door and Window Alarm

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Specifications

Common Questions