This weather station clock with many functions is really useful. It includes an outdoor transmitter and an indoor receiver, so you can observe outdoor temperature just sitting in the house. <br> <br> <strong>Features:</strong> <br> Measure indoor and outdoor temperature and humidity. <br> Wireless transmission makes it possible for outdoor temperature to display on the indoor receiver. <br> Remote transmission of outdoor temperature by 433MHz. <br> Multiple functions: alarm, snooze, calendar, weather forecast and moon phase display. <br> 2 temperature units: Celsius(°C) or Farenheit(°F). <br> Suitable for garage, office, garden or living room use. <br> <br> <strong>Specifications:</strong> <br> Material: ABS <br> Color: Silver + Black <br> Indoor Temperature Measurement: 0°C~50°C / 32°F~122°F <br> Outdoor Temperature Measurement: -20°C~70°C / -4°F~158°F <br> Humidity Measurement: 20%~95%RH <br> Transmitter Battery: 2 * 1.5V AAA Batteries(not included) <br> Receiver Battery: 2 * 1.5V AAA Batteries(not included) <br> Transmitter Size: 9.5 * 6 * 2cm / 3.7 * 2.4 * 0.8in <br> Transmitter Weight: 67g / 2.4oz <br> Receiver Size: 13.5 * 8 * 4cm / 5.3 * 3.1 * 1.6in <br> Receiver Weight: 130g / 4.6oz <br> Package Size: 14 * 8.5 * 8cm / 5.5 * 3.3 * 3.1in <br> Package Weight: 254g / 8.9oz <br> <br> <strong>Package List:</strong> <br> 1 * Transmitter(battery not included) <br> 1 * Receiver(battery not included) <br> 1 * User Manual