AirGradient 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.
View AirGradientBosch is a major German engineering company whose Bosch Smart Home line covers heating control, security sensors, smart plugs and cameras. The system centers on a Bosch Smart Home Controller and emphasizes data privacy with local control. Bosch appeals to users in Europe looking for a reliable, well-engineered smart home ecosystem.
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