Dorgard™ White Fire Door Retainer
The Dorgard™ White Fire Door Retainer is a simple way of retaining and releasing fire doors safely and legally, this battery-operated, self-contained device will safely and legally hold fire doors open without the risk of inadequate fire separation.
Dorgard™ White Fire Door Retainer is a wireless fire door retainer that holds a fire door open legally and releases it automatically when the building’s fire alarm sounds. Ideal for areas where doors must remain open during normal use but still close promptly in a fire, this unit improves access and ventilation without compromising safety.
This white fire door retainer is typically installed at the base of fire doors in commercial, healthcare, education and public buildings. It uses a built-in acoustic sensor to detect the sound of a fire alarm and, when that sound is recognised, releases the door so it will close under its own closer. This avoids the illegal and unsafe practice of wedging doors open, while still allowing free movement in high-traffic areas.
- Product Type: Acoustic fire door retainer
- Brand: Dorgard™
- Material: ABS plastic casing
- Activation: Automatic release when fire alarm exceeds 65 dB
- Power: Supplied with 2 × C-cell batteries
- Indicator: Low battery warning feature
- Fixing Method: 4 screw surface mount
- Size (H x W x D): 205 x 195 x 45 mm
- Use: Keeps fire doors open safely and legally
- Included: Fitting template and fixings
- Description: Dorgard™ Fire Door Retainer
- Supply: Single unit
- Dorgard™ Fire Door Retainers
What is a fire door retainer? A fire door retainer holds a door open safely under normal conditions and releases it automatically when the fire alarm sounds, ensuring the door closes as required for fire safety.
Why should i use a wireless acoustic retainer? Wireless acoustic retainers are easy to install without wiring, ideal for buildings where hard-wiring is impractical or costly.
How does it know when to release the door? It listens for a continuous fire alarm signal (typically above a set 65dB level) and then automatically disengages its hold, allowing the fire door closer to shut the door.
Where can Dorgard retainers be used? They are suitable for commercial buildings, schools, care homes, offices and other public spaces where legal hold-open of doors is needed without compromising safety.
Is this compliant with fire safety standards? Yes — it meets BS EN 1155 standards for electromagnetic fire door hold-open devices.
- ✓ Wireless acoustic fire door hold-open retainer
- ✓ Detects fire alarm sound and releases door automatically
- ✓ Quick and simple installation in under five minutes
- ✓ Complies with EN 1155 for fire door retainers
- ✓ Battery powered with long battery life
- ✓ ABS plastic casing in white finish
- ✓ Helps maintain legal fire door operation
- ✓ Makes day-to-day access easier without wedging doors
- ✓ Promotes good ventilation and circulation
- ✓ Reduces wear on fire door hardware
- ✓ Suitable for schools, offices, hotels and care homes
- ✓ Ensures doors close reliably in emergencies