Dwyer Instruments' Model CM-1 Digital Clamp Meter measures DC and AC voltage to 600 V
Dwyer Instruments' Model CM-1 Digital Clamp Meter is designed for general electrical testing and troubleshooting. The digital clamp meter measures DC and AC voltage to 600 V, AC current to 400 A and resistance to 400 Ω. In addition to volts, amps and ohms, the meter includes a frequency tests to 400 Hz. The CM-1 also features data/range hold and auto range buttons to keep the screen from updating when gathering values. The 3-3/4-digit LCD features automatic polarity, overload and low battery indication.