The testing device GLP1-e 60204 serves for checking the electrical safety at machines and devices according to the "machine guideline" EN60204 (VDE 0113). It is ideally suited for fast and uncomplicated testing in workshops or on construction sites. It is possible to perform PE tests and insulation resistance tests as well as high-voltage tests and residual voltage tests. Two different models are available. The basic difference is the way of contacting the test object.