It is mainly used for the detection of cathodic protection parameters. It is an indispensable device in pipeline management and maintenance. It is arranged along the line according to the test function.

The test post can be used to test the pipeline potential, current, and insulation performance, and can also be used to test the leakage detection of the covering layer and the test of AC and DC interference. It is a kind of accessory equipment specially used for the cathodic protection of pipelines with potential test probes to test the protection pipelines.