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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USAZooz makes affordable Z-Wave smart home devices, including switches, dimmers, plugs, sensors and relays, designed for reliable DIY home automation. Its products are popular with SmartThings, Hubitat and Home Assistant users and often support advanced Z-Wave features like scene control and direct association. Zooz is a go-to brand for budget-friendly, capable Z-Wave hardware.
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