Home/Test & Measurement/Multimeters - AC/DC Clamps/400A TRUE RMS AC/DC CLAMP METER + NCV



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The True RMS model is the right choice for accurate readings of non-sinusoidal waveforms, a model with DC Current function for automotive applications, or a model with Type K function when applications require Temperature measurements. The Extech MA440 meter is fully loaded with multimeter functions and a built-in non-contact voltage (NCV) detector to meet your application needs!

  • Built-in bright flashlight
  • Built-in Non-Contact Voltage (NCV) detector
  • Capacitance and Frequency
  • Large backlit LCD display

Out of stock

SKU: MA445 Category:


The Extech MA445 True RMS 400A AC/DC Clamp Meter is a hand-held, 4000 count clamp meter. The MA445 offers 11 functions including AC/DC voltage, AC current, DC current, resistance, diode, continuity, capacitance, temperature, frequency, duty cycle, TRMS AC measurements, and Type K Thermocouple. In addition, the MA445 meters offer Display hold, MIN-MAX, Relative mode, NCV (non-contact voltage detection), and automatic power OFF.

  • True RMS
  • AC/DC Current
  • Type K Temperature
  • DC Zero function
  • Built-in bright flashlight
  • Max/Min
  • Pocket-sized meters with 1.2″ (30mm) jaw size fit conductors up to 500MCM
  • Built-in Non-Contact Voltage (NCV) detector
  • MultiMeter functions
  • Capacitance and Frequency
  • Relative Mode for Capacitance
  • Data Hold freezes reading on the display
  • Auto Power Off with disable and Low Battery indication
  • Large backlit LCD display


  • 1 – Set of Instructional Documentation (Quick Start)
  • 1 – Set of Test Leads
  • 1 – K-type Temperature Probe
  • 3 – 1.5V AAA Batteries
  • 1 – Pouch
Download Product Datasheet
Download Product Manual


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