Using this Digi International Digi 6310 - DX LTE Cellular Extender is easy. First, make sure you have the correct power supply included with the product. Plug it in to a suitable power outlet. Then, attach the antennas as per the orientation indicated. This will help in getting the best signal strength. When it comes to maintenance, keep the extender in a clean and dry place. Avoid exposing it to extreme temperatures or moisture. If you notice any issues with the connectivity, check the power supply and the antenna connections. With proper care, this extender will serve you well for a long time.