“…More important is to collect carbon monoxide, methane and other flammable gases and smoke in indoor air, prevent gas poisoning and family fire and other sudden accidents, real-time monitoring of these indicators affecting the safety of indoor residents, and timely warning and alarm of these indicators exceeding the standard.So as to prevent sudden accidents and ensure the safety of indoor residents [5] . Design of this system to consider the use of advanced integrated sensor technology, through the built-in microprocessor, detector and internal curing operation procedure, automatic collection and calculation analysis of the external environment air composition, help the user to monitor PM2.5 and PM10, a variety of material such as formaldehyde concentration and temperature and humidity indicators, such as high precision, at the same time cooperate with mobile phone display, Ensure access to air quality information anytime and anywhere, so as to solve the monitoring and control of indoor temperature, humidity, smoke concentration and other problems.…”