La Crosse Technologys wireless temperature station features indoor/outdoor temperature readings, indoor humidity, Hi/Lo temperature records, and trend indicators all on an easy-to-read display. Long distance wireless transmission ranges over 330 ft and reads 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. Battery operation station with sensor will require 2 AAA with 2 AA batteries (not included) giving you your weather at a glance!