Electrical tester, automatically ranging true mean squared (TRMS) digital clamp meter. Measures AC current via the clamp, and measures AC/DC voltage, resistance, continuity, and tests diodes via test-leads. CAT IV 600V, CAT III 1000V, Class 2, double insulation safety rating. Built to withstand a 6.6-foot drop. Includes a low battery indicator and easily accessible battery compartment. 600 amps.