Viper Alarm 350HV

Hi,

I have Viper Alarm 350HV installed on my car at a out of state shop.

I'm wondering what kind of activities will set off the alarm. The manual says it has dual state sensor (warn away : soft impact or if someone/something approaches too close will trigger some soft chirp, and the other is the alarm itself). But, one day I found some footsteps and a long deep scratch on the hood of my car without any notice from the alarm (manual says that it has a memory that will warn anytime something/someone  did something that triggered the alarm, such as additional chirp when someone disarm the alarm normally). I park my car far enough from my house so even I hear alarm wailing, I won't go outside just to check whether it's from my car.

Briefly, I need to adjust the sensitivity of the alarm (so both the "warn away" feature and the alarm itself work properly). Can I do it myself ?

And what area will be covered by this model of alarm (only 4 doors not includes the trunk; glass : windshield, driver's side/ passenger's side; rear window; hood) ?

I tried to unlock the car door using its key, it didn't trigger the alarm, not until I really opened the door. Is it normal ?

Any helps would be appreciated. Thank you.

Hi guys,

Thanks a lot for the informations. It's very helpful.

Again, thank you.

Regards,

Edsaint