Photoelectric technology may detect visible particles (associated with smouldering fires) sooner than ionisation alarms. ActivFire certified and approved to AS3786:2014. The PSA Lifesaver 6000 model is a mains powered, 9V battery-backed smoke alarm. The alarm uses photoelectric technology and is designed to be surface mounted on the ceiling or wall. When used with the LIF6000WB (wireless RF interlink baseplate), the alarm offers wireless interlinking capabilities as well as remote test/hush functionality with LIF6000THL (wireless smoke alarm controller) FEATURES Photoelectric sensing technology Easy installation & maintenance with a QUICK SLIDE base. Important Information Queensland Smoke Alarm legislation The new QLD smoke alarm legislation start on January 1st 2022, All properties leased or sold in Queensland must be fitted with photoelectric, interconnected smoke alarms in all bedrooms of the home as well as hallways or between areas containing bedrooms and on each storey of the dwelling.