Wireless Weather Station Green Backlight Digital Alarm Clock with Indoor Ourdoor temperature Monitor Sauna Thermometer and Remote Sensor Temperature and humidity measures: (1) Ambient air temperature; (2) Ambient humidity; (3) Probe temperature, Temperature range: -50--70(-58F--158F) Indoor & Outdoor and Sauna temperatur alert system offers safety alerts timely. Remote sensor transmits from up to 100 feet; records daily high and low temperatures Receives Outdoor weather data from up to 3 sensors Real-time Temperature and Humidity Trend Monitoring Availble