VIDEX DM3 Door Monitoring ModuleThe DM3 is a self contained door monitoring unit requiring only an external low voltage power supply and a set of normally closed door contacts. There is an internal sounder and an override key switch to disable the unit. Built in chime facility Monitors whether door is opened forced open left open Door forced alarm state Internal sounder can be programmed to chime when door opens or generate alarm sound during alarm conditions
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product description
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The DM3 is a self contained door monitoring unit requiring only an external low voltage power supply and a set of normally closed door contacts. There is an internal sounder and an override key switch to disable the unit.
Built in chime facility
Monitors whether door is opened/forced open/left open
Door forced alarm state
Internal sounder can be programmed to chime when door opens or generate alarm sound during alarm conditions