2 Wireless Sensor Weather Station WWVB RCC Thermometer Barometric Pressure RH% Indoor Outdoor Temperature Monitor Temperature : Indoor: 32~122F / Outdoor: -40~140F Supports WWVB signal (US and Canada) emitted Near Fort Collins, Colorado and recieved through most of mainland USA. Weather forecast: Sunny, Partly Sunny, Cloudy, Rainy and Stormy Dual Power Supply : 110AC / Batteries (includes only 110V Power Adaptor) / Remote sensor : 2 x AA Batteries (batteries not included)