Digital Clamp Meter, AC Auto-Ranging 400 Amp Klein Tools CL110 Measures AC current via the clamp and AC/DC voltage, resistance and continuity via test-leads Built to withstand a 3.3-foot (1m) drop CAT III 600V, Class 2, Double insulation safety rating Backlit display for clear readings Powers off automatically after 15 minutes of non-use to conserve battery life Includes a carrying case, test leads and 3 x AAA batteries Low battery indicator and easily accessible battery compartment Meets requirements for use in basic and controlled electromagnetic environments like residential, office and light-industrial locations Operating altitude to 6562-Foot (2000 m) Operating temp: 32-degrees F to 122-degrees F (0-degrees C to 50-degrees C)