The OhmGuard® Hose Continuity Tester is designed to test hoses used on vacuum trucks and tanker trucks prior to the transfer of flammable or combustible products. The OhmGuard® verifies that the electrical conductivity of the hose is functioning correctly, ensuring static electricity is not permitted to accumulate on the metal components of the hose which will eliminate the risk of a fire or explosion caused by the discharge of a static spark. The OhmGuard® is easy and quick to use, does not require any specialist operator training and will indicate, within seconds, if the hoses are safe to use.