Time calendar display: Jan. 1, 2000, to Dec. 31, 2099; Time format: 12H/24H optional, Temperature display format: ℃ or ℉ 

Weekly display in 7 languages: English, German, Italian, French, Spanish, Dutch, and Danish

Time dual-ring alarm function can be set to alarm on weekdays and alarms on weekends. The snooze function can be set for 5~60 minutes

Screen display: Indoor environment level 3 comfort level display; Level 3 mold risk display in the indoor environment; Temperature & humidity trend display

Indoor temperature range: 0℃~+50℃ & +14℉~+122℉, display resolution: 0.1 ℃ & ℉

Indoor humidity range: 20%RH~95%RH, display resolution: 1%RH

Outdoor temperature range: -20℃~+70℃ & -4℉~+158℉, display resolution: 0.1 ℃ & ℉

Outdoor humidity range: 20%RH~95%RH, display resolution: 1%RH

433MHz ASK receiving outdoor transmitter, up to 3 effective RF channels

Outdoor temperature upper and lower limit alarm and frost point alarm function

Record of max. and min. indoor & outdoor temperature

6 weather forecasts (predict the weather in 12 hours): sunny, cloudy, overcast, rain, heavy rain, and snow

10s backlight lighting function by battery mode, 3-level backlight selection by the USB power 

Power supply: the clock is powered by 2 x 1.5V AA (no batteries)/USB power; Transmitter is powered by 2 x 1.5V AA (no batteries)