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Extech MA443 True RMS AC Clamp Meter

SKU
MA443
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Extech MA443 True RMS AC Clamp Meter

Measure AC current with this handheld, easy-to-use, 30mm jaw clamp meter from Extech.

The upgraded version of Extech's MA440 clamp meter, the MA443 includes expanded functionality. The main upgrade is true RMS - unlike the MA440, the MA443 will maintain accurate results when testing AC even on irregular waveforms and circuits. It also includes a type K temperature measurement function, built-in torch and has a MAX/MIN mode for measuring the maximum/minimum values taken over a period of time.

Extech's MA443 also doubles up as a fully functional digital multimeter. It can measure AC current to 400A using the jaws, but also includes test leads for measurements of AC/DC voltage, resistance, capacitance, duty cycle, diode and continuity.

This clamp meter also includes a built-in non-contact voltage detector, data hold function and a large, backlit LCD display.

The MA443 is CAT III 600V safety rated.

Extech MA443 True RMS AC Clamp Meter Key Features

  • Measure AC current to 400A
  • True RMS - ensures accurate results on irregular AC waveforms
  • 30mm jaw size suitable for conductors up to 500MCM
  • Built-in non-contact voltage detector
  • Measure AC/DC voltage to 600V
  • Resistance measurements to 40MΩ
  • Capacitance measurements to 40mF
  • Frequency measurements to 1MHz
  • Measure temperature using a type K thermocouples from -40 to 1000°C
  • Duty cycle, continuity and diode measurements
  • Built-in torch light
  • MAX/MIN mode
  • Data hold mode
  • Automatic power off with disable
  • Low battery indicator
  • Large backlit display

What's Included?

  • Extech MA443
  • Test Leads
  • 3 x AAA Batteries
  • Carrying Pouch
  • General Purpose Type K Temperature Probe

Extech MA443 Technical Specifications

Max resolution shown in brackets.

AC Current 400.0A (1mA) true RMS
Basic Current Accuracy ±1.8%
DC Voltage 600V (0.1mV) true RMS
AC Voltage 600V (1mV)
Basic Voltage Accuracy AC: ±1.2%
DC: ±0.8%
Non-Contact Voltage 100 to 600V
Resistance 40MΩ (0.1Ω)
Capacitance 40mF (0.01nF)
Frequency 1MHz (0.01Hz)
Temperature (Type K) -40 to 1000°C (1°C)
Duty Cycle Yes
Diode/Continuity Yes
Dimensions 228 x 77 x 41mm
Weight 265g
Extech MA443 Clamp Meter - Datasheet Datasheets Extech MA443 Clamp Meter - User Manual Manuals & Guides

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Additional Information
SKU MA443
Manufacturer Part Code MA443
Country of Origin China