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.
| Brand | Videx |
| Stockcode | L10909 |
| Barcode | 5055120620930 |
| Depth | 29mm |
| Width | 68mm |
| Finish | White |
| Input Voltage | 12V DC |
| Pack Quantity | 1 |
| Packaging | Boxed |
| Manufacturer Reference | DM3 |
