10-year lithium battery (3V) permanently installed, at least 10+1 years service life i-diagnosis function error forecast regarding battery voltage and degree of contamination i-comfort identification quickly find signaling detectors i-event memory memory function regarding previous alarm events i-mute function (extended) suppress unwanted alarm + 12h signal suppression in case of error message Easy-press button (test & mute) operation possible from the ground Pleasant test volume slowly increasing in test mode Suitable for bedrooms no LED flashing in operating mode Contamination compensation reduced susceptibility to errors when the smoke chamber is dirty Self-monitoring automatic self-test with error display Tested quality VdS, Q validated according to EN 14604, for use in accordance with DIN 14676, extended testing according to vfdb 14-01
