ThailandAirGradient builds open-source indoor and outdoor air quality monitors that track PM2.5, CO2, temperature, humidity and other pollutants. The company is known for its open hardware and firmware, letting users build, repair and integrate the monitors with platforms like Home Assistant and its own dashboard. AirGradient appeals to people who want transparent, data-driven air quality monitoring rather than a closed black box.
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Hong KongSofaBaton makes universal remote controls that consolidate a living room's devices into one handset. The range runs from the entry-level U1 and U2 up to the X1 and X1S, which pair the remote with a hub so it can reach devices over infrared, Bluetooth and Wi-Fi rather than line-of-sight alone. Remotes are configured from a phone app against a large device database, with customizable keys and one-touch activity macros that switch several devices at once.
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