The Dwyer MM10 digital multimeter is a compact, low cost instrument ideal for general electrical testing and troubleshooting. This full function multimeter measures DC and AC voltage to 600V, DC current to 10A and resistance to 20 MΩ. In addition to volts, amps and ohms, this meter includes audible continuity, diode, LED and transistor hFE tests. Rotary switch allows you to select from any of the twenty ranges quickly and easily. The 3.5 digit LCD features automatic polarity correction, low battery and overload indication. Rugged, high impact case comes equipped with built-in tilt-stand for versatile, hands-free operation. Overload protected to 600 VAC/600 VDC for voltage ranges and to 500 VAC/500 VDC for resistance, diode and continuity test ranges. Current ranges are protected by 0.5A/250V, replaceable fuse.