5G Gigabit industrial wireless router is best used in open and unobstructed environment because of less interference; or used in commercial environment because of more base stations and stable signal. And used in the underground environment, there will certainly be underground distance, soil mud block and other factors on the signal interference. If the 5G signal under the test well is stable, the industrial router can be used normally. If the 5G signal is unstable, then it can be backward compatible with 2/3G/4G, which can ensure stable data transmission. However, cellular network is not stable, it is futile to use any networking device.