Amprobe 38XR-A Prof DMM True RMS with Optical PC Interface Frequency To 10 MHz, Capacitance To 400 microF, Temperature To 2372 F Duty Cycle, dBm and 4 To 20 mA Loop Current Test 1000V/750V DC/AC True RMS, AC + DC Input 10 Amps AC/DC, Fully Safety Fused Resistance To 40Mohm