This Wireless Temperature Station displays your real-time backyard temperature in large, easy-to-read digits. Monitor indoor and outdoor temperature with daily min/mix records, track temperature trends and set your own high and low outdoor temperature alerts-all in one convenient device for your desktop or bedside table. It also features digital time and date with snooze alarm, and has a wireless transmission range of over 200 ft. to the backyard temperature sensor.Highlights:• Outdoor temperature (°F / °C)• Outdoor temperature trend indicator• Signal strength icon for sensor transmission• Outdoor temperature alerts• Indoor temperature (°F / °C)• Indoor temperature trend indicator• 12/24 hour time (manual setting)• Calendar: month / day / date• Outdoor MIN/MAX temperature (°F / °C) • Indoor MIN/MAX temperature (°F / °C)• Low battery icon for station• Low battery icon for sensorSpecifications:Indoor temperature range: 32°F to 122°F (0°C to 50°C) Outdoor temperature range: -40 °F to 140 °F (-40°C to 60°C)Battery life over 2 yrs. with Alkaline batteries200 ft. wireless transmission rangeReceiver:• Powered by 2 "AA" alkaline batteries (not included)• 4.27"�L x 1.48"�W x 3.88"�H(108 x 38 x 99 mm)Sensor:Powered by 2 "AA" alkaline batteries (not included)1.57" L x 0.79" W x 5.12" H (40 x 20 x 130 mm)