La Crosse Technology 513-149 11 inch Atomic digital wall clock with temperature Wireless indoor/outdoor temperature with Trend arrow Automatically updates for daylight Saving Time Low-battery icon for Clock & sensor Indoor temperature range: +32F to +122F (0C to 50C) Wireless outdoor temperature range: -40 F to 140 F (-40C to 60C) Indoor & wireless outdoor temperature (F/C) display with trend arrows Wireless Outdoor temperature sensor transmits within 200 ft. Please see 5th image for where the sensor is located inside the box Atomic self setting time and date with automatic daylight saving time reset Perpetual calendar (month/date/weekday) Low battery indicator icons