Features: 1. Indoor temperature (¡ãF or ¡ãC). 2. Wireless outdoor temperature. 3. Wireless outdoor humidity. 4. One remote sensor WH2 included. 5. Can receive up to 3 sensors. 6. Free standing 7. Min and Max records of temperature and humidity. 8. Time and date with manual setting. 9. 12 or 24 hour digital time display. 10. Synchronized instant reception. 11. Low power consumption. Specifications: 1. Humidity range: 20% - 95%RH (+/- 5% under 0 to 45¡ã). 2. Outdoor temperature range: -40¡ãC ~ +65¡ãC. 3. Indoor temperature range: 0¡ãC ~ +60¡ãC. 4. Temperature accuracy: +/-1.0¡ãC. 1. Base station: 113x67x27.5mm 2. Sensor WH2: 91X70X32.5mm.