Sierra Wireless 4G Module Improves Connectivity of the World’s First LTE-enabled IoT Air Quality Monitor

Founded in 1997, Kweather is the nation’s largest private-sector weather service provider. The company entered air quality monitoring and management business in 2015, launching its new brand AirGuard K.

Business Challenge

Kweather launched its very first AirGuard K Station in March 2015 using Wi-Fi for connectivity and Bluetooth in cases where Wi-Fi is unavailable. The main function of the AirGuard K Station is to collect and live-transmit data to the server station flawlessly. However, customers experienced functional limitations while using Wi-Fi and Bluetooth due to both unstable network connections and the data being blocked by the security firewalls of their own Wi-Fi networks. Such inconveniences led to further researches and development of the next generation model to be compatible with LTE cellular networks, which are available nationwide and widely used in Korea.

Sierra Wireless Remote Monitoring Solution

Kweather first came across Sierra Wireless in their search for an LTE module that supports a specific internet protocol. At the time, the HL Series was the only LTE module in South Korea that supported HTTP and certified on all three major telecom carriers, SK Telecom, KT and LG U+. Deployment of the Sierra Wireless 4G module turned out to be very successful and helped Sierra become a reliable brand as Kweather’s major customers, particularly the public entities like libraries and hospitals, were highly satisfied.

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