AirGradient ONE Indoor Air Quality Monitor
The AirGradient ONE received two awards at the 2023 AIRLAB Microsensors Challenge for 'Most Accurate Multi-Pollutant Indoor Air Quality Monitoring under €500' and 'Best Accuracy for PM 2.5 Sensors indoors under €500.' It uses high-quality sensors from SenseAir, Sensirion, and Plantower to measure six key parameters. The device is fully open-source hardware and software, allowing for complete customization and user-replaceable components. It features native Home Assistant integration, works completely locally without cloud dependency, and includes a built-in LED bar and OLED display.
