Extech MA44x Series of 400A Clamp Meters
Dec 16, 2020
The MA440 measures AC current up to 400A, DC and AC voltage up to 600 volts, resistance, capacitance and frequency. The MA443 adds True RMS measurement, for the accurate reading of non-sinusoidal waveforms, and thermocouple temperature measurement. In addition to these, the MA445 measures DC current up to 400A, which makes it the ideal clamp meter for professional residential and commercial applications such as automotive, heavy equipment and marine DC current measurements. All three models are rated CAT III – 600V.
The large character 4-digit (4,000 count) backlit LCD display is easy to read and the built-in flashlight in the MA443 and MA445 provides instant illumination for workplace areas with poor lighting.
The series all feature the handy NCV detector function, which can quickly identify the presence of voltage on live wires.
All three meters feature a jaw size of 1.2” (30 mm) to accommodate up to 500MCM conductors and are therefore suitable for most users in electrical, HVAC/R and electronics design, installation, testing and repair.
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