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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United StatesKwikset is an American residential lock manufacturer founded in 1946 and part of ASSA ABLOY, known for its deadbolts, handlesets and the SmartKey Security rekeying system. Its smart lock range covers the Wi-Fi Halo family, including the Halo Touch fingerprint model, plus the Bluetooth Aura line, all managed from the Kwikset app without a third-party hub or subscription. Newer Halo Select and Aura Reach models add Matter, and the Halo Select Plus supports Apple home keys, alongside Amazon Alexa and Google Home voice control.
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