This weather station clock is multifunctional which is also ideal for temperature and humidity measurement. It includes an outdoor transmitter and an indoor receiver， so you can observe outdoor temperature just sitting in the house.Features:Measure indoor and outdoor temperature and humidity.With wireless technology，it can show outdoor temperature in indoor receiver.Remote transmission of outdoor temperature by 433MHz signals.Multiple functions: calendar， alarm， snooze and weather forecast.Can set indoor/outdoor temperature and humidity alert.2 temperature units for choice: Celsius(°C) or Farenheit(°F).The LCD screen with color display， enjoyable to read.With 2 hanging holes， it is convenient to hang on the wall.Specifications:Temperature Measurement: 0~50°C / 32~122°F(indoor) -20~70°C / -4~158°F(outdoor)Temperature Resolution: 0.1°CHumidity Measurement: 20%-95%RHTransmitter Battery: 2 * 1.5V AAA Battery(not included)Receiver Battery: 2 * 1.5V AAA Battery(not included)Transmitter Size: 20 * 11.5 * 2.5cm / 7.9 * 4.5 * 1inTransmitter Weight: 248g / 8.7ozReceiver Size: 9.5 * 6 * 2.5cm / 3.7 * 2.4 * 1inReceiver Weight:65g / 2.3ozPackage Size: 30.5 * 13 * 3.5cm / 12 * 5.1 * 1.4inPackage Weight: 402g / 14.2ozPackage List:1 * Transmitter(battery not included)1 * Receiver(battery not included)1 * User Manual