Weather Channel wireless station forecasts the weather with 3 weather icons, based on changing air pressure, plus air pressure direction, indoor/outdoor temps and more. 3 weather icons, based on changing air pressure Air pressure tendency arrow Indoor/outdoor temperatures in °F or °C. Records MIN/Max temperatures with time/day stamp Atomic clock with 12/24 hour time and date display Automatically updates for Daylight Savings Time Perpetual calendar Wall mountable Receiver operates on 2 AA batteries Wireless sensor operates on 2 AA batteries Batteries not included