1. Humidity:indoor and outdoor measurable range:20%RH-95%RH Temperature: Indoor temperature measurement range:0°C (32°F) - 50°C (122°F) Outdoor temperature measurement range:-40°C (-40°F) - 70°C (158°F) Temperature can also be in °C or °F. 2. 3 levels of indoor comfort (not displayed when the temperature is above 25°C or 20°C) 3. Maximum/minimum record of temperature/humidity 4. Wireless outdoor sensors: - 3 channels can be switched - Wall or desktop stand - 433.92MHz RF transmission frequency - 60-meter transmission range in open areas 5. Weather forecast function 6. 4-level backlight brightness 7. can receive up to 3 wireless sensor channels, of which only 1 is included. Colour:As Shown Material:plastic Size:15x4.5x9.5cm Package Contents: 1 * weather clock 1 * outdoor sensor 1 * usb power supply cable 1 * Instruction manual in five languages 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. 1. 3 touch screen setting buttons 2. Calendar up to 2099 years 3. Time is in optional 12/24 hour format. 4. Daily alarm function 5. Snooze function (5 minutes)