Uploaded October 2017 | Updated September 2026, 2 hours ago
Another helpful installation guide from the insight security website - How to Install your Union DoorSense Fire Door Retainer
DoorSense is a purpose designed device which will legally hold a fire door open, but automatically releases the door if the fire alarm sounds, or at a set time, giving you peace of mind. You may want to leave a door open to improve ventilation in a specific area, or to facilitate delivery of goods, but an open door could easily lead to a small fire starting in one part of a building, rapidly becoming a big fire, which is why it's illegal and dangerous to simply prop a door open.
For more information or to buy this product at a competitive price, visit; insight-security.com or call the friendly Insight Security team on; 01273 475500
Another helpful installation guide from the insight security website - How to Install your Union DoorSense Fire Door Retainer
DoorSense is a purpose designed device which will legally hold a fire door open, but automatically releases the door if the fire alarm sounds, or at a set time, giving you peace of mind. You may want to leave a door open to improve ventilation in a specific area, or to facilitate delivery of goods, but an open door could easily lead to a small fire starting in one part of a building, rapidly becoming a big fire, which is why it's illegal and dangerous to simply prop a door open.
For more information or to buy this product at a competitive price, visit; insight-security.com or call the friendly Insight Security team on; 01273 475500
