Keithley Instruments Inc. Digital Precision Multimeter, 6.5 digits 0.0024% accuracy, dual/graphic display
The 5½-digit DMM4020 and 6½-digit DMM4050 and DMM4040 broad purpose bench multimeters deliver a comprehensive range of functions to meet your most demanding measurements on the bench or in a system. These digital multimeters perform the functions you would expect to see in a multifunction DMM, including measuring volts, ohms, amps, and frequency measurements. The DMM4050 adds temperature and capacitance for greater versatility.