Item Tag: Msa-910
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Door Alarms When Opened 4 Pack, New Version with Two Volume Levels, Window Al…
EASY To INSTALL: By simple peel and stick as includes double sided tape! No wiring needed! No screws needed! provides 120db(high) and 90db(low) two levels for your choice LOW BATTERY INDICATOR: Built-in low battery indicator to check battery life easily.