The present invention discloses a self test electrical test pen.SolutionIncludes electric test penA test head slide groove opened upward is formed in the electrical test pen.An electrically conductive sliding block groove formed upward is formed on the inner bottom wall of the test head slide groove.The conductive sliding block groove communicates with the test head slide grooveA battery is fixedly mounted on the right inner wall of the conductive sliding block grooveThe right side end surface of the battery is coupled to the right end face so as to be able to be fixedly and electrically energizedA grounding mechanism is provided on the inner bottom wall of the conductive sliding block groove.On the left inner wall of the test head slide groove, a push plate slide groove open to the right is disposed in the upper and lower directions.Diagram
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