Who, but authorized people could/would be opening the door??

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"car crash" wrote in message
...
I'm looking at getting some type of device or alarm or something that
when a garage door is opened it makes a sound inside the house to
notify whoever is inside that someone has opened the garage. We don't
have an alarm system. In short our garage doors are really quiet and
we can't hear if anyone opens them and comes in. Has anyone ever
heard of a device, be it electrical or cellular that can make a noise
or a chime or ring inside the house when the garage door is
activated ? If so, where and how much ?
Thanks.