Ground bond resistance tester is a specialized electrical testing instrument used to verify the integrity of a ground connection in electrical equipment. It measures the resistance of the ground path, ensuring it's low enough to safely conduct fault currents away from the equipment and to the ground in case of a malfunction. This helps prevent electrical hazards like shocks and ensures the proper functioning of the equipment. Which Tessio Instrument had providing full range of testing Ground Bond Resistance Testers to reaching the customer target from economic type to high-end type especial customization of the customer for single function of Ground bind resistance Tester. It complies with safety standards GB4706.1-2005, IEC60335-1:2004, and uses JJG-984-2004 for verification.