DorWatcher Door Held Open Alarm
Summary
The DorWatcher alarm is designed to prevent doors from being left open for extended periods. Typically installed on kitchen doors in student accommodation, it activates if the door remains open for more than one minute. The alarm prompts those nearby to close the door, helping to prevent cooking smoke from drifting into corridors and triggering unwanted fire alarm activations. Once the door is closed, the alarm resets automatically.
When a protected door is opened, an LED flashes for visual confirmation. If the door remains open, a warning chime sounds after the first time delay (factory default 40 seconds), followed by the main alarm tone after the second time delay (factory default 20 seconds). The alarm continues for 2 minutes, then repeats every 30 seconds until the door is closed. Time delays are adjustable from 30 seconds to 7 minutes total alarm time.
Manufactured in the UK by Hoyles Electronic Developments, the DorWatcher features a robust ABS plastic enclosure with clear instructions displayed on the unit. A box tamper switch activates a tamper tone if the front cover is removed, and optional protective cages and anti-tamper screws are available for installations in areas prone to vandalism.
Features
The DorWatcher alarm is designed to prevent doors from being left open for extended periods. Typically installed on kitchen doors in student accommodation, it activates if the door remains open for more than one minute. The alarm prompts those nearby to close the door, helping to prevent cooking smoke from drifting into corridors and triggering unwanted fire alarm activations. Once the door is closed, the alarm resets automatically.
When a protected door is opened, an LED flashes for visual confirmation. If the door remains open, a warning chime sounds after the first time delay (factory default 40 seconds), followed by the main alarm tone after the second time delay (factory default 20 seconds). The alarm continues for 2 minutes, then repeats every 30 seconds until the door is closed. Time delays are adjustable from 30 seconds to 7 minutes total alarm time.
Manufactured in the UK by Hoyles Electronic Developments, the DorWatcher features a robust ABS plastic enclosure with clear instructions displayed on the unit. A box tamper switch activates a tamper tone if the front cover is removed, and optional protective cages and anti-tamper screws are available for installations in areas prone to vandalism.
FAQ
How does the DorWatcher alarm work?
When a door is opened, an LED flashes for visual confirmation. If the door remains open, a warning chime sounds after the first time delay (factory default 40 seconds). If the door is still open after the second time delay (factory default 20 seconds), the main alarm tone activates. The alarm continues for 2 minutes, then repeats every 30 seconds until the door is closed.
Can I adjust the time delays before the alarm sounds?
Yes, the time delays are adjustable. You can set the total time to alarm at 30 seconds, 1 minute (factory default), 3 minutes or 7 minutes by adjusting the TD1 and TD2 time delay settings.
What power options are available?
The DorWatcher is available in three models: DW304 (battery powered), DW305 (12V DC powered) and DW306 (240V AC mains powered).
How do I know if the batteries need replacing?
The battery powered DW304 model has a built-in battery fault monitor. If the unit bleeps as soon as the door is opened, this indicates that the batteries are running low and should be changed.
How can I test if my DorWatcher is working correctly?
Simply open the protected door. If the LED on the front panel flashes within 10 seconds, the system is working correctly. If the LED does not flash and the alarm does not activate after the preset time delays, contact your installation company.
What happens if the front cover is removed?
The DorWatcher has a box tamper switch that activates a tamper tone if the front cover is removed, providing additional security against tampering.
Are there options to protect the unit from vandalism?
Yes, optional protective cages (CG100) and anti-tamper screws are available for installations in locations prone to tampering or vandalism. Regular inspection of these units is recommended.
Does the alarm reset automatically?
Yes, once the door is closed at any point, the unit will reset automatically. The next time the door is opened, the timers will restart.
Specifications
- Models Available:
- DW304 – Battery powered
- DW305 – 12V DC powered
- DW306 – 240V AC mains powered
- Enclosure Material: Robust ABS plastic
- Dimensions: 175mm (W) x 125mm (H) x 60mm (D)
- Door Contact: Surface mounting with 1m pre-connected cable
- Time Delay Options: 30 seconds, 1 minute (factory default), 3 minutes, 7 minutes
- Factory Default Time Delay: TD1 40 seconds, TD2 20 seconds (1 minute total)
- Alarm Duration: 2 minutes continuous, then every 30 seconds
- Visual Indication: LED flashing when door opens
- Tamper Protection: Box tamper switch activates tamper tone
- Battery Fault Monitor: Audible indication on DW304 battery powered model
- Installation: Surface mounting
- Accessories Included: Cable clips and fixing screws
- Optional Accessories: CG100 protective cage, FIX/16 cage fixing screws, FIX/16/ATS anti-tamper screwdriver bit, FIX/17 anti-tamper screws (pack of 5), FIX/17/ATS anti-tamper screwdriver bit
- Certification: CE marked
- Manufacture: Made in the UK
Downloads
- Datasheet (Adobe PDF)
- Installation Instructions (Adobe PDF)