Features 1、The hygrometer has a large 4in LCD touch screen, touch operation, more convenient to use. 2、Blue backlight, can read clearly in dim environments, and automatically turn off the backlight after about 5 seconds. 3、A variety of installation methods, thermometer can be placed on desktop, or can be wall‑mounted and magnet installation. 4、The digital hygrometer has an emotion icon display, which can more intuitively understand the indoor humidity. 5、The shell is made of high‑quality ABS material, wear‑resistant and durable, not easy to damage. Specification Item Type: Thermohygrometer Material: ABS Product Size: Approx. 104 x 94 x 25mm/4.1 x 3.7 x 1in Temperature Range: -10℃-50℃ (14℉-122℉) Humidity Range: 10%-99% Measurement Interval: About 10 Seconds Accuracy: 0.1℃, 1%RH Error Degree: ±1℃, ±5% Power Supply: 2 x 1.5V AAA Battery (Battery Not Included) Package List 1 x Thermohygrometer (Battery Not Included) 1 x Instruction