La Crosse Technology s wireless temperature station features indoor/outdoor temperature readings indoor humidity Hi/Lo recorded values 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 can be adjustable to view in either 12-hour standard or 24-hour time format and station is versatile to change temperature readings to show in either Fahrenheit or Celsius. Display will indicate when batteries are low and should be replaced and shows your transmitting sensor strength level. Battery operated station with included temperature sensor requires 2 AAA and 2 AA batteries (not included) giving you your weather at a glance!