Wirelessly connect up to 24 Quell wireless smoke alarms on an independent, wireless alarm network (no WIFI internet required) Sealed – In lithium battery – maintenance and hassle – free with prevention from tampering and removal. The alarm always on, with no battery replacement required for the 10 – year life – span of the alarm Photoelectric sensor an advanced sensor to detect visible particles associated with smouldering fires Smart Hush button temporarily silences nuisance and false alarms Test/Reset button – tests the alarm circuitry and horn. Resets memory after the alarm has sounded Talking voice Alarm more effective at waking than a tone only with voice message “Fire” End – of – life signal – chirps every 30 – 45 seconds to signal that alarm needs to be replaced Deactivation switch disables the alarm to allow for safe battery disposal once the unit has reached the end of its 10 year life Complies with Australian Standard AS 3786:2014 incl. Amdt 1 and Activfire listed for quality assurance.