I'm having an alarm retrofitted through my dealer sometime in the couple of weeks (yes, I'm in Australia where they're not standard and I'm waiting on the parts from Germany) as I have break-in issues in my apartment complex car park.
As I'm at work all day and the car stays home

, I'm interested to know how long will the alarm sound for if it goes off (no doubt, much to the annoyance of the folks at home through the day

)?
Will it keep going off until I get home and can disarm it or will the battery die fairly quickly?