Ground tester for measuring grounding resistance, installation category III, with a 7-meter measuring lead at the safety measuring tip. High measurement accuracy, protection class IP40, operating voltage of 50-60 Hz. The ground tester is a compact measuring device. Thanks to its robust and ergonomic design, users can work comfortably with the ground tester. Grounding resistance can be quickly determined. Additionally, it can check whether the grounds are interconnected. To ensure clear readings, the ground tester features a large, clearly designed, multi-colored LC display. The display also provides visual feedback on the condition of the installation. If the installation is correct, the display remains blue. In the case of a faulty installation, the display changes to a red background. The ground tester consists of a reading unit that is plugged into the socket as a whole, and a safety testing tip that connects to the reading unit via the underside. The safety testing tip has a cable length of approximately seven meters.