Digital Weather Station Screen Glass Thermometer Temperature Hygrometer Monitor Features: All the basic functions of a weather clock,plus perpetual calendar and clock functions Time in 12-hour or 24-hour format Weather forecast function to predict climate change for the next 12 hours 4 Weather forecast patterns are displayed: sunny,cloudy,cloudy and drizzle 2 Alarm clocks can be set Snooze function can be set at the same time(OFF or 1~30min) Comfort and window opening/closing reminder function Specification: Humidity: Indoor and outdoor measurement range are:20%RH~95%RH Temperature Indoor temperature measurement range:-9.9°C(15° F) to 50°C(122° F) Outdoor temperature measurement range:-40°C(-40°F) to 70°C(158°F) Temperature can be switched in °C or °F Outdoor thermometer alarm Minimum maximum value of air humidity and temperature recorded for 24 hours Outdoor temperature high and low temperature warning and frost warning Atmospheric pressure Atmospheric pressure measurement range 600 HPa/mb to 1100 hPa/mb 17.72 InHg to 32.50 inHg Pressure selection in hPa/mb or inHg optional Backlight function with long-lasting backlight when powered by external power supply Selectable 4 brightness levels--bright->medium->dark->off 15 Seconds per trigger light when battery powered Wireless outdoor sensor Can be hung on the wall or placed on the windowsill 433.92MHz RF transmitting frequency 60m transmission range in open area Support up to 3 sensors connected,shipping default with 1 Power supply Host:two No.7 batteries(package does not include batteries)and USB cable power supply(external power supply) Sensor:powered by two No.5 batteries(batteries not included in the package) Size:about 16.5*8*12cm Weight:about 400g Package includes: 1*Weather clock 1*Sensor 1*USB cable 1*Manual Note: Only the above packaged products are included,package does not include batteries Specifications are measured by manual testing,for reference only Please refer to the actual product,thank you