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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USATP-Link is a major networking company whose smart home presence spans its Kasa and Tapo lines plus its Wi-Fi routers and Deco mesh systems. Kasa and Tapo cover smart plugs, switches, bulbs, cameras and sensors at affordable prices, with Alexa and Google Home support. TP-Link is popular for combining solid home networking with an easy, low-cost smart home ecosystem.
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