Features:
*Time in optional 12/24 hour formal
*Alarm / snooze
*Display of weekday
*Weather forcast display:sunny,semi-sunny,cloudy,rain
*Temperature display:indoor measurement ranges 0C~60C
*Humidity display :indoor measurement ranges 20%~99%
*Language show:seven-segment week languega show
*12-hour temperature change trend curve
*Low-valtage detection function Backlight
