Power supply: 2 *LR6 "AA" battery (NOT included)/DC 5V power supply 

Alarm clock, 5-60 minutes sleepiness function 

Time (12HR/24HR), date and week (7 national languages) display 

12-level month phase (jump line selection positive or negative)

5-level indoor climate comfort display 

6 kinds of weather forecast (sunny day, cloudy day, light rain, heavy rain, snow day) and weather trend display 

Temperature detection: indoor: -9.9 ~50 (15 ~122) outdoor: -20 ~+60 (-4 ~140) resolution: 0.1 (-0.1) humidity detection - indoor/outdoor: 20% RH ~95% RH resolution: 1% RH barometric detection - 1% RH pressure detection - 600hPa/mb ~ 1100hPa/1100hPa/inHmb (17.72Hg-32.48inHg) resolution: 1hPamb/Hmb (0 hHg (0.03External High and Low Temperature and Frost Point Report Warning function Temperature-humidity trend display 

Record of maximum and minimum indoor and outdoor temperature and humidity 

Pressure trend chart for the past 24 hours shows 

Backlight-DC power supply: Backlight is level 4 (high/medium/low/low) battery power supply: Lighting for 15 seconds 

Suspendable wireless outdoor sensor (433.92 MHz RF sensing frequency, 60m sensing range, waterproof )