The WDTU does have a current readings tab that updates every 10 seconds. I don't know if the time holds true if there are more stations connected, but the 10 seconds update is consistent with the two stations to which I am connected. The data supplied is outside temp, outside humidity, wind speed, wind direction, wind speed 10 min., wind gust 10 min., wind direction of gust, dew point, heat index, THSWI, wind chill. daily rain, 15 min. rain, last 24 hour rain, rain rate, U.V., solar, and E.T.