1、Up to 3 remote sensors can be connected at the same time to display the weather data of 3 rooms respectively. 2、The time can be selected in 12/24 hour format, with alarm clock function and snooze function. 3、Time, date, and weather data are directly obtained from the network without manual setting, which is more convenient and accurate. 4、Indoor/outdoor temperature and humidity data display (°C or °F display switch), minimum/maximum display of air humidity and temperature. 5、With barometric pressure, wind speed and frost alarm function, wind speed unit is km/h or Mph optional. Item Type: Weather Clock Material: ABS Color: Black Size: Approx. 20.5x13x2.9cm / 8.1x5.1x1.1in Weight: Approx.697g/24.6oz Current: 0.3A Power: 6W Time: 12-hour/24-hour system Wind speed in km/h or Mph Indoor Humidity Range: 20%RH-95%RH Indoor Temperature Range: -20℃-60℃ or -4℉-140℉ Outdoor Temperature Range: -40℃ (-4℉) -70℃ (158℉) Outdoor Humidity Range: 20%RH-95%RH Data Transmission Frequency: 433MHz Wireless Range: Up to 60m/196.9ft (open area) Wireless Sensor Waterproof Rating: IPX4 Languages: 8 Weather Types: 20 types Weather Clock/Sensor Battery: 2 x AA batteries (Not Included) 1 x Weather Clock(Battery Not Included) 1 x Power Adapter 1 x Sensor(Battery Not Included) 1 x Instruction Manual 1 x Wifi Instruction Manual