[2 in 1 function] 2 in 1 LCD digital hygrometer, suitable for indoor / outdoor, body size: 150 88 24mm, very suitable for home decoration, ensuring the best room temperature and humidity[Intelligent operation] -High precision, high sensitivity, automatic recording of the highest / lowest temperature and humidity values[Easy to Carry] -Unique design, lightweight, easy to carry, you can use cables and probes to easily measure outdoor temperature and humidity[Installation design] -There are rear brackets and hanging holes on the back, you can easily hang it on the wall or put it on the tableMultifunctional home assistant -Digital thermometer and hygrometer with clock, calendar and alarm clockPower supply: 1 AAA 15V battery (without battery)