The La Crosse Technology WS-8300U-IT Wireless Digital Weather Station records minimum and maximum temperature and it can receive signals from up to three sensors. One sensor is included.  The wireless outdoor temperature range is from -39.8 degrees to +139.8 degrees Fahrenheit, and the humidity range is  from 1 to 99 percent. It monitors the indoor temperature range from 14.1 degrees to 139.8 degrees Fahrenheit. This wall hanging or free standing Digital Weather Station features 12 or 24 hour time display with manual setting. It requires two AA alkaline batteries for the receiver and two AA alkaline batteries for the wireless sensor.