Welcome to our store. Our products have affordable prices and good quality. We support dropshipping and wholesale . If you want to work with us for a long time, please contact us and we will give you a very favorable price.Best Regards! Remote Monitor & Notification Alert:Remotely monitor temperature and humidity from your smart phone. Help keep an eye on your house when youre away from home. App will pushes you alert notifications once data is out of the preset range. High Accuracy and No Interference:Temperature humidity built in high accuracy sensor. It can accurately acce the temperature within a deviation of +/- 0.1 Celsius and +/- 3%RH. In addition, it use radio transmitting circuit and coding technology, no signal interference. Dual Display Methods - Wirele digital indoor hygrometer thermometer is designed with clear LCD screen. You can check the current hygrometer thermometer on LCD display, also or you can get current and historic data via APP. Free Data Storage:It features 30-day on-board data storage. You can view recent temperature and humidity records freely. Easily track data-changing by curve graph displaying. Widely application & ZigBee 3.0 Hub:Widely used for nursery, bed room,wine cellar,green house, office,pet condition,etc. This Smart Sensor need to work with ZigBee 3.0 Hub. Colour:white Material:plastic Size:84x55x32mm Package Contents:1 * Wifi Temperature Humidity (without battery 2*AA) 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.