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 Ohm to 40 MOhm; frequency measurement from 10 Hz to 50 kHz; detects continuity at less than 30 Ohms; 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. Milwaukee® Digital Multimeter, Heavy Duty, 6 mV to 600 VAC, 600 mV to 600 VDC, 10 A, 10 Hz to 50 kHz Frequency, 40 mOhm Resistance, Safety Rating: Cat III 600 VAC, 1000 uF Capacitance, +/-0.003% + 2 Digits Accuracy, Black on White LCD Display, AA Alkaline Battery, 6-1/2 in L Dimensions, -40 to 752 °F, Polycarbonate/Rubber Overmold, Black/Red