Electronic Specialties 688 True RMS Low Current Clamp Meter Accurate measurements down to 1 mA (.001A) - 80A maximum reading DC/AC Larger clamp size of .75" (19 millimeter) and improved zero drift stability - Electronic Specialties enlarged the clamp opening as much as possible while still maintaining 1 mA resolution Minimum/Maximum and Peak Minimum/Maximum functions, Data Hold, Relative Zero - Full DMM built-in Built-in Temperature F & C - Temp probe included Measures DC/AC Amps, DC/AC Volts, Resistance, Capacitance, Frequency (Hz) and Temperature