Air Quality v1.1 is an , low-power air quality monitoring device. Compared to the previous generation, the version uses the Stamp-S3A controller, which optimizes overall power consumption and the Wi-Fi antenna. The device features a 1.54-inch e-ink screen with a resolution of 200x200. The built-in multi-functional air quality sensor SEN55 and CO2 sensor SCD40 monitor PM1.0, PM2.5, PM4, PM10, temperature, humidity, VOCs, and CO2 concentrations. A built-in 600mAh lithium battery and RTC low-power power management circuit enable sleep and scheduled . The factory firmware supports uploading air quality data to the Ezdata cloud platform, providing users with convenient remote cloud data viewing. The bottom structure provides -compatible mounting holes, magnets, and four plug-in mounting ears, supporting various mounting methods. It is suitable for air monitoring in homes, schools, industrial sites, medical settings, and other environments. Color: Picture Color Material: plastic Package Contents: 1*Air Quality Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.