Extechs MN series digital multimeters are designed to measure electrical quantities. An Extech Multimeter can measure alternating and direct current potential differences (voltages), current, and resistance, with several full‑scale ranges provided for each quantity. These meters have a 600 VAC/VDC range, and current readings for up to 10 Amps. Extechs lines of Multimeters are available with auto and manual ranging options. Extechs DMM displays the measurement on a numeric LCD display. These meters are typically used for computers, control equipment, electronic/electrical troubleshooting, or HVAC.