Check the listing for details. Multimeter Car Diagnostic AC DC Voltage Tachometer Dwell ms-PULSE Circuit Tester. Condition: New. Listed at 52.49 USD. Product Info: ★BT-770K is a compact, battery operated,handheld with safety protector, streamline, 3 3/ 4 digital automotive engine analyzer multimeter. ★Makes measurement simple and easy. ★It is an ideal multi-function instrument with scores of practical applications for professional, workshop, school, hobby and home use. ★Equipped with reading hold function. ★Built-in motor analyzer. ★For measuring DC/AC Voltage, DC/ AC Current, Resistance, Capacitance, Frequency and Duty cycle, Temperature, Diode/Continuity test, Tachometer, Dwell .ms-PULSE. ★Automatic shutdown. ★Background light function. ★Diode test and continuity test. ★Continuity with buzzer detection. ★AC true RMS test and MAX/MIN test. ★It is an ideal instrument for all drivers.