Usage Tips:Features: [Weather Station Indoor Outdoor Thermometer]VA screen display is clearer and brand-design. Larger, clearer screen viewing angles, comfortable color, indoor outdoor temperature (C/F), inside outside humidity, barometric pressure, moon phase, calendar, atomic clock, weather forecast , daily MAX/MIN data. [Measurement ranges]Indoor temperature measurement ranges: -9.9C (14.2F) ~ 50C (122F); Outdoor temperature measurement ranges: -40C (-40F) ~ 70C (158F); Temperature alternatively in C or F. Humidity measurable range: 20%RH ~ 95%RH [Barometric Pressure Trend and Weather Forecast]Relative air pressure/absolute air pressure can be .The outdoor weather station predicts the weather conditions in 12-24 hours according to the change of air pressure trend, and it will take 7-10 days for learning and calibration when it is used for the first time. [The MAX/MIN]Easily obtain the maximum value of temperature and humidity in the past 24 hours. Functions: Time in optional 12/24 hour format Perpetual Calendar Up to Year 2099 Day of week in 7 languages Dual alarms Snooze time setting (1~30Minute or OFF) Remote sensor low battery indicate Comfort level dictator Weather forecasting and barometer function Ice alert Time and temperature projection function Projection display 180 degree rotation function Maximum /minimum value record of temperature and humidity Tips: The product may be updated constantly, The Actual Product May Have Slight Differences Or Color Differences the color and appearance may be changed, please don't mind. And take a consideration before place the order if you have request for color or appearance. Material: plastic colour: Black Package Contents: 1 x Projection Weather Clock 1 x Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.