15 Forecast Icons based on temp & air pressure readings, suggest what kind of weather to expect & what to wear Sun/Moon Rise/Set Based on Selected City Barometric Pressure History IN Temp & Humidity OUT Temp Dimensions: Receiver: 4.25" x 6.04" x 1.14" Sensor: 5.5" x 1.625" x 1" All Features: Weather-Man Forecast Icon Based on Changing Barometric Pressure Indoor Humidity (%RH) Wireless Outdoor Temperature (°F or °C) Indoor Temperature (°F or °C) Calculates Sun Rise/Set BAsed on Selected City Name Moon Phase Atomic Time and Date with Manual Setting 12 or 24 Hour Time Display Time Zone Setting Perpetual Calendar Time Alarm with Snooze LED Backlight Wall Hanging or Free Standing Specifications: Indoor Humidity Range : 1% to 99% Wireless Outdoor Temperature Range: -21.8°F to 157.8°F Indoor Temperature Range: 14.2 °F to 139.8°F Transmission Range: Up to 330 Feet Transmission Frequency: 433.92 MHz Swiss Precision Sensor Compatible Sensors: TX3U, TX3UP Power Requirements: Receiver: 3 "AA" Alkaline Batteries Sensor: 2 "AA" Alkaline Batteries