WT0123 wireless digital thermometer with outdoor sensor

WT0123 Wireless Thermometer With Outdoor Sensor   433MHz, Transmission distance up to 100 meters   Features:   1. Indoor temperature(°C or °F).   2. Wireless outdoor temperature.   3. Min/Max records of temperature   4. Time and date by manual setting.   5.12-24 hours time display.   6. Perpetual calendar   7. Time alarm with snooze.   8. Wall hanging or free standing.   9. Can receive up to 3 outdoor sensors   10. Synchronized instant reception.     Specification:   1. Indoor temperature: 0°C to +50°C   2. Outdoor temperature range:-40°C to +60°C   3. Temperature accuracy:±1.0°C     Power consumption:   Receiver: 2xAAA 1.5V Alkaline batteries   Transmitter: 1.5V 2xAAA  Alkaline batteries   Battery life: Minimum 12months for base station                      Minimum 12months for transmitter   Dimensions(HxWxD): 119mm×74mm×21mm