if you have an alarm and tell the insurance company you have one, they do ask , then they would expect you to use it, so you would need to specify how the alarm is used. when i moved in there was an alarm, but because doors and windows had been changed it did not really protect, and was old, so i took it out as we replaced all the doors and windows. The alarm box is still on the outside of the house as a possible deterrent.
I have thought about putting a new wireless version in