UNION DoorSense Acoustic Release Device, White
Standalone acoustic release device for fire doors. Automatic operation when alarm sounds, no wiring needed. BS EN 1155 compliant.
The UNION DoorSense Acoustic Release Device is a standalone unit designed to be fixed to fire doors, providing a reliable solution to keep them open while ensuring automatic release when a fire alarm sounds. Easy to install with no wiring required, it can often use the same mounting points as older units, making it a convenient upgrade.
Powered by two Alkaline C batteries for long life, the DoorSense features a low battery indicator to maintain optimal performance. It offers flexible operation modes: manual control or automatic release via a timer for night-time settings.
Key Features
- Standalone Operation: No wiring needed for installation
- Automatic Release: Triggers upon fire alarm activation
- Low Battery Indicator: Ensures continuous reliability
- Battery-Powered: Uses 2x Alkaline C batteries (included)
- Easy Retrofit: Can replace older units with minimal adjustments
- Colour Options: Available in black, red, or white
- Compatibility: Suitable for fire-rated doors with closers rated 3-7
Compliant with BS EN 1155 and EMC tested for timber doors (FD120), this device provides peace of mind in critical fire safety applications.
Included in the Box
- DoorSense Acoustic Release Device
- Fitting and setup instructions
- 2x Alkaline C batteries
- Shipped within 0-2 business days
- Shipping to United States: 3-5 business days*
- Free Shipping Included
- Fire-rated doors
- Buildings requiring automatic door release systems
- Commercial properties
- Public buildings
- Standalone operation (no wiring required)
- Automatic release upon fire alarm activation
- Low battery indicator
- Powered by 2x Alkaline C batteries (included)
- Easy retrofit installation
- Colour options: black, red, or white
- Compatible with fire-rated doors (door closer power 3-7)
- Compliant with BS EN 1155
- EMC tested for timber doors (FD120)
- Weight: 1100g
Always follow local regulations and product guidance.
Free standard delivery on US mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For defective items, contact us within 14 days for a replacement or refund.
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