Fluke 88V 1000V Automotive Multimeter Digital multimeter measures AC/DC voltage, AC/DC current, resistance, capacitance, frequency, and temperature Manual- and auto-ranging modes for user flexibility Built-in thermometer allows for temperature readings without a separate instrument Performs millisecond pulse width measurements for fuel injectors Safety rated for Category III to 1000V and Category IV to 600V.Operating Temperature:-20 C - 55 C Maximum Resistance of 50 M Measures to 1000V AC and DC Withstands hazardous 8,000 volt spikes Temperature measurment of -200.0C - 1090C (-328.0F - 1994.0F, 1.0% excluding probe) Maximum Duty Cycle or 99.9 % within 2% per KHz +0.1%