What does the appropriation wispy contained by my sports car do. And what is it call on my insurance?

I have a key near a chip in it. And a blinking theft oil lamp in my 99 Explorer. What exactly does that do and what type of anti-theft device can I claim on my insurance?
Answers:
My 99 Ranger has impossible to tell apart thing. Chip just allows you to lock/unlock the doors from outside the vehicle. Mine is really sensitive to motion when it is locked and a apposite gust of wind will set off the alarm. I dream up they just call it a factory installed alarm system. When it's stormy, I manually lock the doors so the alarm is not activated. Then unlock with the keyfob.


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