Features: 【VERSATILE FORECAST STATION】: Besides for smart clock, it can forecast temperature, alert alarm, humidity, moon phase, comfortable level icons and clock with snooze, DST for time, calendar etc. iTsmart clock. 【EASY INSTALLATION & 328FT TRANSMISSION RANGE】: With easy operation, the sensor would automatically connects and delivers accurate reading datas to the main device. Besides, it is quick and simple to install. 【MONITOR 4 AREAS】: Adopting the advance RF radio frequency technology, our single monitor that can read up to 3 separate sensors (only one sensor included) at the same for time. 【COLOR SCREEN ACRYLIC PANEL】: Our temperature and humidity monitor is 4.41x6.41inches color acrylic panel screen, making images and text are easy to read at a glance even at night. 【FLEXIBLE POWERING OPTIONS】: In order to harness the most accurate data, the back of the main device is designed with lots of breathable holes. For your convenience, you can use either choose European or U.S. standard plug. Specifications: Material: ABS Indoor temp range: 0℃-60℃ (14℉-140℉), Outdoor temp range: -40℃-60℃ (-40℉-140℉), Indoor and outdoor humidity range: 10%RH-99%RH Plug: European standard Plug: U.S. standard Size: as picture shows Wiless Transmission Range Up to 328ft/100m Package Includes: 1x Weather Stations note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.