Indoor and outdoor temperature and humidity measurement Weather forecast, alarm, snooze Fahrenheit or Celsius switchable Large color screen display Moon phase display, atmospheric pressure display 12/24 hour time, calendar, week display Radio time automatic calibration function (WWVB DCF , with function) Seven countries week display: EN FR SP IT DU DA (DCF and NO RCC-EU have this function) Specifications: 1. Measurement range: Indoor temperature display range: -9.9℃-+50℃ & 14℉-+122℉ Indoor humidity display range: 20%RH-95%RH Outdoor temperature display range: -40℃-+60℃ & -40℉-+140℉ Outdoor humidity display range: 20%RH-95%RH Atmospheric pressure display range: 600hPa/mb-1100hPa/mb & 17.72inHg-32.48inHg 2. Resolution: Temperature display resolution: 0.1℃ & 0.1℉ Humidity display resolution: 1%RH Atmospheric pressure display resolution: 1 /mb & 0.03 inHg 3. Error: 0℃-40℃/32℉-104℉: ±1℃/1.8℉ -20-0℃/40℃-65℃/-4℉-32℉/104℉-149℉: ±2℃/3.6℉ 40%RH-80%RH: ±5%RH 4. Host product size: 198x136x40MM,