La Crosse Technology's Wireless Weather Thermometer station features extra-large, easy-to-read digits in a small, sleek case. You will be able to track indoor/outdoor temperature readings, indoor humidity, rolling 24-hour min/max temperature records with time/date stamp. The station also features a calendar and a choice of 4 menu languages. Long distance wireless transmission between the sensor and home station ranges up to 330 ft. and the sensor can read outside temperatures down to -40°F. Time display is adjustable in either 12-hour standard or 24-hour time format and versatile temperature readings in Fahrenheit or Celsius. Optional add-on parts for the outdoor sensor include weather shield, rain gauge, and temperature/humidity. This battery-operated station with included sensor requires 2 AAA and 2 AA batteries (not included) and will give you your weather at a glance!