(1) The projection function supports simultaneous projection of "time and temperature". There is an on/off switch to select continuous projection or off projection. "Indoor Temperature + Time" and "Outdoor Temperature + Time" are displayed alternately. (2) Selectable time (12h/24h), date and day of the week (7 languages): English, German, Italian, French, Spanish, Dutch and Danish (3) Dual alarm function. Selectable "Ring Mon-Fri", "Ring Weekend only" or "Ring 7 days a week" (4) Weather forecast for the next 8 hours (5) Indoor climate comfort display; Indoor heat index value display (Due to different printing batches, if there are slight differences in the actual words, it will not affect the use) Outdoor dew point temperature display 3 levels of indoor/outdoor mold risk alerts Temperature Detection: Indoor Measuring Range: -9.9℃-50℃ (15℉-122℉) Outdoor Measuring Range: -20℃-+60℃ (-4℉-140℉) Humidity Detection: Indoor/Outdoor Measuring Range: 20%RH-95%RH Barometric Pressure Detection: Measuring range: 600hPa/mb to 1100hPa/mb (17.72inHg to 32.48inHg) Outdoor high/low temperature and frost point alarm function Temperature & Humidity, Barometric Pressure Future Trend Display Indoor/outdoor Temperature & Humidity Maximum and Minimum Value Recording DCF/ WWVB/MSF auto-calibration function; with European, American and British adapters Backlight: Adapter powered: backlight is long-lighting and 4-speed selectable (high/medium/low/non-lighting) Outdoor Sensors: Supports up to 3 outdoor wireless sensors at the same time (only one included in the package). 433.92MHz RF sensing frequency, 60 meters sensing range, IPX4 rated waterproof Plug Type:US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the United States, the Philippines and so on. Voltage: AC110V