Universal remote control for wireless smoke, heat and carbon monoxide detector warning systems 10-year lithium battery (3 V) sealed, service life of at least 10 years 4 switch functions test, mute, locating, memory Intuitive operation via one-button principle Fire/CO alarm display provides information on the hazardous situation Wall mount removable device for mobile use House coding for interference-free communication with all system components Test standard EN 300220-3, EMC 301489-3 https://elecena.pl/product/18715676/ei450-alarm-controller-for-ei-smoke-and-heat-detectors 2021-06-07 https://elecena.pl/product/18715676/ei450-alarm-controller-for-ei-smoke-and-heat-detectors 2026-07-12