Enables swift and straightforward installation of an interconnected smoke alarm system with out messy wiring or labor Shows authentic-time indoor PM2.5 and CO2 readings employing Specialist-grade laser sensors. Also shows indoor temperature and humidity readings. Brilliant LED display distinction indoor PM2.5 readings with outside air top quality data from a https://wireless-fire-alarms13455.blog-kids.com/35568261/wireless-fire-alarms-secrets