Union DoorSense J-8755A Heavy duty Acoustic Release Hold-Open Unit
Features and Benefits
- For Internal Use
- Easy to Install
- No Wiring Required
- Completely Retrofits Similar Products
- Fire Rated to 30, 60 & 120mins
Availability: In stock
Holds the door open, but releases upon the sound of a fire alarm being activated. Timer included for automatic closing. Completely retrofits similar products.
- Guarantee - 1 year
- Comes with - 2 x C batteries supplied.
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