Klein Tools MM700 Digital Multimeter TRMS/Low Impedance, 1000VKlein Tools MM700 Klein Tools MM700 Multimeter is an automatically ranging true root mean squared (TRMS) digital multimeter that measures AC DC voltage, AC DC current, and resistance. It can also measure temperature, capacitance, frequency, duty cycle, diodes and continuity. Klein Tools Test and Measurement product line was exclusively designed from the ground up by electricians for electricians. Years of field research, combined with extensive input