ZIBOO UNI-T ZB-UT207 Digital Clamp Multimeter (DC/AC Voltage and Current, Resistance, Diodes, Continuity, Frequency, and Duty Cycle) Measures both AC & DC current up to 660 amps, ideal for vehicles, RVs, marine boats & etc. AC/DC voltage and current, resistance, frequency, continuity & diode check True RMS on AC voltage & current Data hold + relative value measurement + max/min measurement