The CT8027 has all of the measurement functions you will find in a quality 4 digits/analog bargraph digital multimeter: AC/DC voltage and current, resistance and continuity test, plus all the special automotive functions like tachometer, dwell, temperature, pulse width measurement for electronic fuel injection, frequency and diode testing. This affordable multimeter comes with all the accessories you need, including User’s Manual, 9 V battery, test probes, temperature probe, inductive pick-up, protective holster and a hard carrying/storage case.