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ProsKit MT-3109 AC True RMS DC Current Digital Clamp Meter Multimeter Current Frequency Capacitance Test Meter Electrician Hand Tools



A True RMS meter is a precise instrument that measures the effective value of an AC or DC current or voltage, irrespective of the waveform. This is crucial because waveforms that are non-sinusoidal, like those produced by electronic devices, can have an RMS value that significantly differs from their peak or average value.

The ProsKit MT-3109 is a cost-effective True RMS multimeter that is versatile enough for various electrical testing applications. It boasts a display with a 6000-count capacity and is capable of measuring AC and DC voltage, current, resistance, capacitance, frequency, and duty cycle. Additionally, it comes with several other features such as data hold, auto-ranging, and a backlight for ease of use.

If you’re in the market for an accurate and affordable True RMS multimeter, the ProsKit MT-3109 is a solid choice.

The ProsKit MT-3109 is not just a multimeter, but also a digital clamp meter that can measure AC and DC current, frequency, and capacitance, making it an essential tool for any electrician.


  • 3 3/4 digits
  • 3999 counts


  • 1.0% best accuracy

Measurement Capabilities:

  • AC/DC voltage
  • AC/DC current
  • Resistance
  • Capacitance
  • Frequency
  • Duty cycle

Convenience Features:

  • Data hold
  • Sleep mode
  • Auto power off
  • Low battery indication
  • Backlight

Additional Features:

  • Duty cycle measurement
  • Relative reference
  • Overload protection

Clamp Design:

  • Jaw opening size: max. 30mm

ProsKit MT-3109 AC True RMS DC Current Digital Clamp Meter

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