The GRI Door Alert Annunciator is designed to monitor an entry or entries to a business or home by sounding instantly when a door is opened, with an intermittent beep for three seconds.
The recessed version of the GRI Door Alert Annunciator is designed to fit in a single gang electrical outlet box while the surface mount style can be easily mounted in an existing building. Both versions can be operated with a 9 volt battery or external power. Additional sounders and remote buttons allow for increased coverage area.
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