The ZIGBEE soil temperature and humidity meter is used to monitor and record the temperature and humidity of the soil in your home garden. creating a more beautiful and smarter garden system . The temperature is in Celsius and Fahrenheit and you can set the units of temperature in the app. Humidity is calculated as a percentage of soil moisture. Date - When the device is successfully paired with the phone. the device time is synchronized with the phone time. Soil moisture values - The moisture value percentages for this product are not percentages of soil moisture content. It is only a measurement of soil moisture by this product. humidity Range:0-100 percent humidity accuracy:0-50 percent (3 percent ).50 percent -100 percent (5 percent ) Temperature range:-20-60 Temperature accuracy:1 Application Scenarios:Gardens. Potted Plants. Farms. Orchards Waterproof rating:IP67 Applications and transport protocols - The product uses the open protocol of ZIGBEE 3.0. The chip manufacturer defaults it to the tuya smart app or Smart life app. other programs are used to control this device and no technical support is provided by the supplier. About Smart Device Linkage - When the device is linked to other smart devices. it the linked device to work when the value changes and crosses the threshold of the programmed value.When the value changes but does not the threshold of the programmed value. the device not the linked device to work. How to connect it to your APP: 1. Search and download Smart Life or Tuya Smart from Play or the . 2. Add your ZIGBEE gateway to the APP. 3. Press and hold the button on the device for 5 seconds.the device enters matching mode when the blue LED flashes. 4. Click in the APP to enter the gateway page and use the "Auto Search" in the gateway page. 5. W for the device to appear in your app 6. Device addition complete Power Supply:2 x AA 1.5V Batteries (Not included batteries) Colour:White Material:PlasticandStainless Steel Package Contents: 1 x Plant Monitor Only the above package content. other products are not included. Note: Light reflection 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.