Features: 【High reliability and accuracy】 With a large measuring range, it measures temperatures from-10 to 50 °C (14 to 122 °F ) and measures the humidity from 10% to 99% and sensitive sensor can give fast response every 10 seconds. 【Easy operation】You can choose the temperature unit in Celsius or Fahrenheit with one button operation designed for your convenience. The high accuracy is at ± 5% relative humidity and ± 2°F. 【Easy to read】With interior meter, this room thermometer has bright and black front panel. With an LCD screen, it can clearly display the numerical, allowing clearly temperature and humidity reading even at a long distance. 【Multifunctional】It can not only measure the indoor temperature and humidity with an accurate sensor but also indicate three levels of comfort: comfortable, unpleasant and normal conditions with an emotion symbol, which gives you a digital and better living condition to stay healthy. 【Flexible and Portable】It can excellently monitor humidity and temperature indoors and outdoors. It is available for table, wall and magnetic mounting with convenient installation for any type of room. Small and light enough can help you save space and carry it outdoors easily. Specifications: Color: Black Size： 45x58x16mm/ 1.77x2.28x0.63inches Material：ABS+magnet Power Source：A button battery Net Weight: 37g Package Includes: 1x Hygrometer+A button battery note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.