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Title: Perfect
Review: Perfect for allowing us to do things in the back room and hear when someone enters the front door of the shop. No technical difficulties, except the a little plastic thing off broke off the slide for the battery case when we dropped it, still works fine. Adjustible ringtones so you don't have to listen to ding dong or the chapel bells if you don't want too, one ding is enough thank you. Transmits through the sliding glass window even when its closed. If youre looking for a door alarm, this is the right thing. check it out.
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