Electronic Specialties Inc.1000 Amp Current Probe / Digital Multimeter #655FeaturesAnother great tool for all around electrical troubleshooting.The 655 is ideal for all high current applications, especially starting and charging diagnostics.The 655 can measure up to 1000 Amps AC or DC.Unit features built-in degrees F and C temperature readings.37 Test Ranges10 Test FunctionsAuto Power OffAuto-Ranging, Data HoldTemp probe includedContinuity BeepOverload ProtectionClamp opening 1.5 inches9 Volt Battery IncludedCarrying Case includedTest RangesDC Amps: 0-40A, 400A, 1000AAC Amps: 0-40A, 400A, 1000ADC Volts: 0-400mV, 4V, 40V, 400V, 600VAC Volts: 0-400mV, 4V, 40V, 400V, 600VOhms: 0-400, 4k, 40k, 400k, 4M, 40MFrequency: 0-5Hz, 50Hz, 500Hz, 5kHz, 50kHz, 100kHzCapacitance: 0-40nF, 400nF, 4uF, 40uF, 100uFDuty Cycle: 0-.5%-99.0%Diode: Diode TestContinuity: Audible BeepTemperature: -4F to 1832F and -20C to 1000CFREE SHIPPING in the USA!