Our UNION DoorSense range is a series of hold-open devices, designed for door weighing up to 160kg and max door width of 1600mm. It is fire tested for timber doors only. Easily installed with no wiring on doors with a door closer, where it automatically releases when fire alarms sound (A separate door closer must be installed. It is recommended DoorSense is used in conjunction with a professionally installed fire alarm system). Supplied with 2 x C Batteries.
