Product Features Can set 2 alarms, 1-30 minutes snooze function Optional display of time (12H/24H), date and week (7 languages) Temperature can be displayed in C or F 5-level indoor climate comfort display 6 types of weather forecast (sunny, cloudy, overcast, light rain, heavy rain, snow) and weather trend display Temperature detection Indoor: -9.95015122 Outdoor: -40+70-40158 Humidity Detection - Indoor/Outdoor: 20%RH~95%RH Air Pressure Detection: 600hPa/mb1100hPa/mb (17.72inHg32.48inHg) Outdoor high and low temperature and frost point alarm function Temperature and humidity change trend display Record indoor and outdoor maximum and minimum temperature and humidity Display absolute and actual air pressure DC Power Supply: 4 levels of backlight (high brightness/medium brightness/low brightness/off) Battery powered: turns on for 15 seconds and then turns off The product includes a wireless outdoor sensor (RF detection frequency 433.92 MHz, detection range 60 m, IPX7 waterproof) Note: The data are all measured manually, please allow 1-3 cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.