High Accuracy and Fast RefreshImported industrial Grade Swi Sensirion sensors, the indoor thermometer hygrometer detects subtle humidity and temperature changes at office or home. Temperature average error +/- 0.3 0.0 ~ 60.0 , humidity +/- 3%0 to 100% RH. Profeional for indoor room, temperature range design for higher resolution needs. Digital indoor thermometer are updated within 3 seconds to give you lastest changes of the environment. HD Large Screen, Time Display The product adopts a 3.5-inch high-definition high brightne LCD screen, high contrast digital segment code design, so that the screen is clearer.The time at the bottom of the screen allows you to keep track of the changes in ambient temperature and humidity over time. The expreion on the right side of time will tell you whether the current environment is comfortable, so that you can make adjustments timely. / switchable & Multiple Mounting Options The room thermometer indoor with table standing, magnet attaching and wall hanging design, you can easily place this indoor temperature gauge anywhere. Place On The table or On The Wall As Your Will The product comes with bracket and wall sticker. Pre the bracket to the hanging hole on the back of the product and push the bracket upward,then the product can be placed on the platform surface such as table and bookshelf.Stick the wall sticker to the wall with double-sided adhesive tape, align the hanging hole on the back of the product with the wall sticker , push down the product, and then fix it. Environment Friendly Materials, Long Life The shell of the product is made of environmental protection materials such as ABS, which has no harm to the environment and human body. Please feel free to use it. The product is powered by two CR2032 batteries, and the comprehensive service time is 10-12 months. Tips:View24h max/min values:In normal display mode, pre the "+" or "-" key for a short time, and the screen will display the maximum or minimum value of temperature and humidity within 24 hours. Setting time and temperature units:Long pre the setting button,and the "hour" value on the screen starts to flash, and the product enters the setting mode. After entering the setting mode, the corresponding value will flash. Short pre the "+" and "-" buttons to modify the setting content.After setting, short pre the setting button to switch to the next setting content. Colour:picture color Material:ABS Package Contents:1 * Digital Hygrometer Only the above package content, other products are not included. Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.