The addressable mini module 41IOM010K controls a monitored input to allow interfacing between the fire detection system and a mechanical key (supplied) which, if turned, authorises level 2 control panel access (maintenance). 41IOM010K is designed for surface mounting installation, thanks to its plastic housing; alternatively, its small size also makes it suitable for installation in junction boxes or flush-mounted boxes in the 503 residential series. The mini module is powered from the loop and is controlled by the antifire control panel by means of Comelit communication protocol. Housing dimensions: 53x37x18 mm. Approved to EN 54-18.