... 5.Auto Power Off DIGITAL ENGINE ANALYZER1. FunctionDC/AC Voltage, DC/ AC Current,Resistance, Capacitance, Frequency and Duty cycle,Diode\ Continuity test Analog ... Ω,40MΩ,open circuit voltage: 0.4VDCoverload prctection: 250VDC or RMS AC.FREQUENCY(Auto ranging)Ranges:100Hz,1KHz,100KHz,200KHzResolution:0.01HzSensitivity:1VOverload ...