HR643 wireless thermometer hygrometer

HR643 wireless thermometer hygrometer Now you can get temperature in up to two locations from the stylish main unit and a wireless indoor/outdoor sensor. [Brand Story] MIEO Wireless Thermometer with Dual Alarm Clock MIEO is an international brand which always holds the concept of cherishing environment, healthcare, and the transmission of happiness. It keeps pace with people's lifestyle and quality of life, provides health and happy electronic products. Product Features Main Unit: 1)4-line LCD display in-outdoor temperature,clock and humidity separately. 2)433MHz transmission range to 30 meters. 3)Proposed operating range : 5 to 50°C 4)Humidity measuring range: 20% to 95%RH 5)Memory maximum and minimum temperature and humidity readings 6)High/low temperature and humidity alarm 7)Use 2pcs UM-4 or “AAA” 1.5V battery 8)°C / °F display conversion 9)Dimension: 140 x 110 x 50mm Remote Temperature Sensor 1)Display temperature range :-20.0 to +70.0°C 2)Proposed operating temperature range : -20.0 to +60.0°C 3)Relative humidity : Up to 100%, condensing 4)LED indicator for transmitting a reading 5)Slide switch for channel selection. 6)Suggest to use 2pcs UM-4 or “AAA” 1.5V alkaline battery