Features:

- Multifunction door alarm for double doors
- Helps prevent unauthorised exits/entries
- Beeps and flashes when activated
- Add warning in second language with provided labels (21 languages)
- 95/105 dB alarm when activated
- Can be used as an annunciator
- Set to sound for 30 seconds, 3 minutes or continuous
- Easy to install
- Mount on top, right, left or next to almost any door
- Low battery warning (9-VDC alkaline battery included)
- Incorporate a 12/24 VDC connection