Indoor/Outdoor temperature - 12 to 24 hour weather forecast (with icons) - Monitors temperature from up to 3 remotes - Outdoor temperature range (lithium battery): -40.0 deg. F to 122.0 deg. F (-40.0 deg. C to +50.0 deg. C) - Indoor humidity range 25% to 90% - Comfort level indicators - One remote sensor (TS21) included operating range to 164 feet (50 meters) - Automatically sets to the U.S. Atomic clock - 12 or 24 hour time format - Choose English, German, French, Italian or Spanish - Main unit, large LCD display - Wall mount or desktop option - 2-CR2032 (main unit) - included - 2-AAA (remote sensor) - not included - TE346W