Description: This indoor and outdoor thermo-hygrometer has three touch buttons. You can set everything just by touching the three buttons on the screen. A wireless remote sensor is included to detect the outdoor temperature and humidity. You can touch the button to check Max/Min/current temperature and humidity whenever you want. It also contains icons to remind you the humidity changes by more wet or no change or more dry. Comfort level beaker indicator is good for displaying the comfort status. Time also displays for you to check when you see the temperature and humidity data. When you using it at night， you can press the light button on top. Then the white backlight will be lit for a few seconds so you can see clearly.Features:Indoor and outdoor temperature displayIndoor and outdoor humidity displayRecords max/min temperature and humidity (in and out)Comfort level beaker indicatorLow battery indicatorTime display in 12/24hWhite backlight will lit for a few seconds after you press light buttonPostion Method: table standing or wall hangingMain unit: powered by 3*AAA batteries (Not included)Sensor: powered by 2*AAA batteries (Not included) Specification:Item Size:main unit: 5.59”Lx0.87”Wx3.78”H(142x22x96mm)Sensor: 2.36”Lx1.06W”x3.78”H(60x27x96mm)Net weight: 260g Package weight: 300gColor: Black with Silver Package contains:1x B0317 In/out THERMOMETER， 1x WIRELESS SENSOR; 1x Instruction Manual