The Lang Tools CAT IV Digital Multimeter Kit, No. 13804, includes test leads and alligator clips for measuring DC/AC volts, resistance and continuity; a K-type temperature probe for measuring AC/heat/coolant; and an inductive pickup for accurate RPM measurement. CAT IV 600V/CAT III 1000V provides user safety, especially on hybrid/electric vehicle work, and the high-voltage LED test function allows for testing on LED lighting. The mS function allows easy measurement for both TBI and PFI Fuel Injector pulse width. Features a backlit display for easy viewing and a limited lifetime warranty. Comes in a protective case.