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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USAArre is a smart home brand that designs and assembles its products in New York, focused on simple, unobtrusive devices for everyday use. Its lineup includes a smart button, temperature sensor, contact sensor and smart lock, with the contact sensor built on Matter and Thread for broad ecosystem compatibility. Arre aims to make products that fit into daily life without disrupting it.
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