Item Type: Thermometer Hygrometer Commercial Use: Indoor electronic hygrometer Product Size: Approx. 7.9 x 5.8 x 2.2cm / 3.1 x 2.3 x 0.9in Product Material: ABS Battery Parameters: Applicable To 2 x AAA alkaline dry batteries, Nominal Voltage: 1.5V, Capacity: 900mah Weight: 75 g / 2.6 oz(approx.) Color: White Package List 1 x Thermometer Hygrometer This product does not come with batteries, you need to buy 12 IN 1 THERMOMETER HYGROMETER: The digital hygrometer controls both indoor temperature and humidity and is ideal for living rooms, baby rooms, kitchens, winter gardens or basements, giving you a comfortable life 2WITH BACKGROUND LIGHT: Hygrometer is designed with LCD screen with background light. Just touch the logo to turn on the background light, which will automatically turn off after about 10 seconds 3EASY INSTALLATION: The hygrometer comes with a hanging hole, table stand and powerful magnet. Can be easily mounted on the wall or placed on a table. Use 2 AAA batteries(not included) 4SMART DISPLAY: The LCD screen can display not only the current humidity and temperature, but also the highest and lowest humidity and temperature within 24 hours. There are also 3 emoticons to indicate the comfort of the room, with a smile meaning the best 5HIGHER ACCURACY: Temperature accuracy is 1, humidity accuracy is 5%RH, press the button in the upper right corner to change the and as required