Require connection to WiFi 2.4GHz ,and no hub required. After configuration, it supports full functionality. Large screen display:Using a large screen narrow border design,the display content is diverse,the digital display is clearer , at a glance, and can be seen clearly from a distance. Temperature and humidity history:You can view the historical data graph of temperature and humidity on the app and export the data to your mailbox. APP Remote Monitor:Pay attention to changes in temperature and humidity,and care . Backlight display Supported:At night or in dim scenes ,you can tap the light to trigger the backlight,so you can see the screen clearly., Manufacturer: Akfldms