The Milwaukee® digital multimeter (NIST) is a heavy duty True-RMS meter for professional residential, commercial and industrial applications. The perfect tool for the professional commercial or industrial electrician, includes the features that are needed to get the job done in the field, on-site or in the plant. Milwaukee® 2216-20 digital multimeter features True-RMS measurement to accurately measure all applications, CATIII 600 V for increased safety in demanding electrical environments, AC voltage range of 6 mV to 600 VDC voltage range of 600 mV to 600 VDC, resistance measurement from 600 to 40 MOhm, frequency measurement from 10 Hz to 50 kHz, detects continuity at less than 30 Ohm, Current measurement to 10 A AC/DC, hold function, min/max function and digital bar graph readout, black on white display and backlight for easier reading, rugged over molding for improved durability and user grip, proprietary rail system for mounting accessories, needed by many organizations as proof of calibration with the date when NIST calibration was performed. Nothing but heavy duty. Milwaukee® Digital Multimeter, Heavy Duty, 6 mV to 600 VAC, 600 mV to 600 VDC, 10 A, 10 Hz to 50 kHz Frequency, 600 Ohm to 40 MOhm Resistance, Safety Rating: Cat III 600 VAC, 1000 uF Capacitance, +/-0.5% of Reading + 2 Digits Accuracy, LCD Display, AA Alkaline Battery, Peak Hold: Yes, -40 to 752 °F, Polycarbonate/Rubber Overmold, Red with Black