WT0120 rf 433mhz wireless thermometer

WT0120  With outdoor sensor Wireless Weather Station LCD Alarm Clocks With Indoor/Outdoor Temperature&Humidity   433MHz, with or w/o RCC Transmission distance up to 100 meters   Features: 1. Indoor temperature(°C or °F). 2. Wireless outdoor temperature. 2. Min/Max records of temperature 2. Time and date by manual setting. 3.12-24 hours time display. 4. Perpetual calendar 5. Time alarm with snooze. 7. Wall hanging or free standing. 8. can receive up to 3 outdoor sensors 9. 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:   1.5V   2xAAA Alkaline batteries Transmitter: 1.5V 2xAAA Alkaline batteries Battery life: Minimum 12months for base station                        Minimum 12months for transmitter Dimensions(HxWxD): 119mm×74mm×21mm