Hello, as an electrical contractor I have been asked to install a fire door exit system which shall notify the works manager in a central location of a factory via an audible alarm or an illuminated sign etc if any one of four fire doors are left open when a building is unoccupied for outwith normal working hours. Please can someone advise me of the best solution?

There is an alarm called the Exit stopper door alarm (single and double) that is fitted to the fire door and once the exit door is opened the unit alarms until the alarm is reset by the key holder. With this product you can have a remote sounder that is sited away from the alarm so personnel in other parts of the building can be notified that the door has been opened.