Track real-time subway train locations in Seoul metropolitan area. Set arrival alerts for stops. View visual train movement updates. Favorite stations provide arrival time forecasts.
Monitor indoor air quality with real-time data on PM 10, PM 2.5, PM 1.0, CO2, TVOC, temperature, and humidity. View air quality grades and scores. Rename IAQ devices. Check current weather and outdoor air quality.
Track student attendance with real-time updates. Input attendance numbers to send instant messages to parents. View detailed logs including student names and entry/exit times. Sync across devices for seamless management.
