Feature 1、4 WINDOW DISPLAY: The screen can display four data at one time, which are double temperature, humidity and time. 2、HD DISPLAY SCREEN: Digital thermometer hygrometer uses high definition display screen to intuitively display temperature and humidity. 3、HIGH ACCURACY: With high sensitivity detector, the temperature humidity gauge measures quickly and accurately. 4、ABS SHELL: Made of premium ABS shell, which is hard and firm, not easy to damage, ensures long service life. 5、EASY TO USE: The digital temperature humidity monitor is easy to use, compact in size and light in weight, convenient to carry. Item Type: Temperature Humidity Monitor Material: ABS Size: Approx. 10.3x9.3x2.15cm/4.1x3.7x5.9in Weight: Approx. 150g/5.3oz Battery: 1 x AAA Battery (Included) Measuring Humidity Range: 10% to 99% RH Measuring Temperature Range: -20℃ to +60℃ Measurement Error: Temperature ±1℃, Humidity ±5% RH Package List 1 x Temperature Humidity Monitor 1 x User Manual 1 x Battery