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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USASensi, a brand of Emerson, makes smart thermostats focused on easy DIY installation and reliable HVAC control. Its thermostats offer scheduling, remote control and energy-saving features through the Sensi app, with support for Alexa, Google Home and Apple HomeKit on select models. Sensi appeals to homeowners wanting an affordable, easy-to-install smart thermostat.
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