The Automotive Multi Meter is a compact 3 3/4 digit instrument for measuring DC and AC voltage, current, resistance, diode and continuity. Data hold function and frequency measurement. Low battery indication, overload protection and audible continuity.Meter capabilities: 250V AC/DC [voltage], 32.6 M Ohms [resistance], 10Amp [current], Screen size 63 x 32mm. Tests Tacho (RPM), dwell angle, temperature and duty cycle 1 x PP3 (MN1604) 9v battery included