TESOR 2 is a device for the measurement and testing of leakage resistance. The free electric charge generated by the plastic powder spraying can be dangerous and must be grounded. For this reason all metal paint shop facilities, particularly those in areas with explosion hazard, must be reliably grounded to prevent the accumulation of charge. Grounding of the coated object has a major impact on the quality of powder coating. By using the device we can make sure that the tested product is adequately grounded.