Wireless Temperature Station with Time, Black Model 308-1409BT-CBP Wireless temperature at a Glance! La Crosse Technology's wireless temperature station features indoor/outdoor temperature readings, Hi/Lo temperature records, and trend indicators all on an easy-to-read display. Long distance range of 300 ft (91 meters) and temperatures down to -40 F. Time display can read in 12 hr standard or 24 hour format and temperature readings in Fahrenheit or Celsius. Batteries required, but not included.