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￡? comfort index and moon phase. <br> 2 temperature units for choice: Celsius(??C) or Farenheit(??F). <br> Suitable for garage￡? office￡? garden or living room use. <br> With bracket￡? convenient to use. <br> <br> <strong>Specifications:</strong> <br> Material: ABS <br> Color: Black + White <br> Indoor Temperature Measurement: 0??C~50??C / 32??F~122??F <br> Outdoor Temperature Measurement: -25??C~70??C / -13??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 * 2.5cm / 3.7 * 2.3 * 1in <br> Transmitter Weight: 67g / 2.4oz <br> Receiver Size: 12.5 * 11.5 * 2cm / 4.9 * 4.5 * 0.8in <br> Receiver Weight: 127g / 4.5oz <br> Package Size: 12.5 * 14 * 10cm / 4.9 * 4.5 * 3.9in <br> Package Weight: 302g / 10.6oz <br> <br> <strong>Package List:</strong> <br> 1 * Transmitter(battery not included) <br> 1 * Receiver(battery not included) <br> 1 * User Manual