IoT technology improves quality and intelligence of citizens' livelihood in Smart City. EcoBear ECO-RA01 is an intelligent air pollution detector with rugged housing case for most environment applications. ECO-RA01 equips with EcoBear configurable sensor platform. Through the platform, customers can flexibly choose sensors and wireless transmission module. With the fine air flow design inside the chamber, ECO-RA01 is capable to measure air pollution concentration very efficiently.