KKMOON HD AT2150B Automotive Meter Tester Digital Multimeter Tachometer Cap. Temp. Tester Sensor w/ LCD Backlight Test dwell & tach, AC/DC current, voltage, resistance, capacitance, temperature, hFE. Low battery display Auto power off Diode & continuity & duty cycle Test Dwell: 1/3/4/5/6/8 CYL (1.2%+2) Tach: 1/3/4/5/6/8 CYL (1.2%+2)