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MA250: 200A AC Clamp Meter + NCV

AC Clamp-on meter with Integrated Non-Contact Voltage Detector


The compact Extech MA250 200 amp AC/DC clamp meter offers maintenance technicians, electricians, and DIYers a test instrument that delivers a high level of features and value. In addition to a host of core multimeter and current measurement capabilities, it also features a built-in non-contact voltage (NCV) detector. The heart of the MA250 is a full-function digital multimeter. Measurement functions cover most types of troubleshooting over and above noninvasive current probe measurements: voltage, resistance, capacitance, frequency, duty cycle, diode and continuity tests. Even measure temperature with the supplied Type K bead wire temperature probe. MA250 comes with test leads, general-purpose Type K bead wire temperature probe, two AAA batteries, carrying case, user manual, and one-year limited warranty.

Additional information

Display counts

4000 count LCD

Jaw size/Cable size

1.2" (30mm); 350MCM

AC Current

20A, 200A

Max Resolution

0.01A (AC)

Basic ACA Accuracy (% rdg)


DC Voltage (Max Res.)

600V (0.1mV)

Resistance (Max Res.)

40.00MΩ (0.1Ω)

Capacitance (Max Res.)

100µF (0.01nF)

Frequency (Max Res.)

10kHz (1Hz)


-4 to 1400°F (-20 to 760°C)

Duty Cycle

0.1 to 99.9%



Data Hold





7.9×2.6×1.5" (200x66x37mm)/ 7.2oz (205g)

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