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 StatesLevel is an American smart lock maker based in Redwood City, California, and part of ASSA ABLOY, known for hiding every electronic component inside the deadbolt so the door keeps its original hardware and look. Its range covers Level Lock Pro, Level Lock and the retrofit Level Bolt, plus the Level Keypad and the Level Connect Wi-Fi bridge, all managed from the Level Home app. The locks pair with Apple Home and Apple home keys, Amazon Alexa, Google Home and SmartThings over Bluetooth, Matter-over-Thread or Wi-Fi.
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