Ajax LifeQuality, smart air quality detector, detailed statistics, notification when defined thresholds are exceeded, up to 2.5 years battery life, LED display of CO? content, easy wall or ceiling mounting, up to 1700m wireless range, Jeweller and Wings wireless communication technology, IP50 protection class, incl., 2x CR123A batteries (pre-installed), SmartBracket mounting plate, mounting kit, quick start guide