Union DoorSense Acoustic Release Device - White 27 X4-C With a 90-tooth design and

With a 90-tooth design and 4° of arc swing

providing improved accessibility

M14 x 30 (x10)

WI-FI ENABLED Add the heater to either the TUYA or Smartlife apps and control your heating from your smartphone

Union DoorSense Acoustic Release Device - White 27 X4-C With a 90-tooth design andUNION DoorSense is a standalone unit which can be fixed to a fire door in seconds to provide a reliable way to keep it open but will automatically release if the fire alarm sounds. DoorSense is incredibly easy to install, needing no wiring or special skills, it can even use the same footprint as some older units. Once fitted, DoorSense is powered by two Alkaline C batteries for long working life, and has a low battery indicator to help you keep the