The Electronic Specialties Low Current Probe/DMM, No. 687, can measure down to .001A and up to 80A. It's ideal for all low current applications, especially for diagnosing parasitic drains. Its clamp opening is large enough to fit over most negative battery cables. Applications include: fuel injectors, fuel pumps, electric motors, battery drains, and charging systems. Use the 687 as a full digital multimeter, measuring AC or DC volts, resistance, continuity, frequency, duty cycle, capacitance, and diodes. Features 35 test ranges, 10 test functions, auto power off, auto-ranging, data hold, overload protection, and a backlit LCD display.