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Mid-size clamp meter with dual display, heavy-duty magnet, detachable leads and alligator probe tips

Fieldpiece

Fieldpiece SC440The True RMS Clamp Meter measurement tool

SKU CH-2M8V-86REJ MPN SC440The

A mid-size clamp meter with True RMS sensing for accurate VFD readings, inrush current capture, temperature, capacitance and microamp DC flame-diode testing in one tool

  • Product typeClamp-On Meters
  • True RMS delivers accurate VAC and AAC readings on VFDs
  • Inrush current captures compressor start-up amp draw for diagnostics
  • Temperature and capacitance ranges cover thermal and electrical HVACR tests
  • Microamps DC measures flame diode signals for combustion safety
  • Heavy-duty magnet enables hands-free mounting on metallic surfaces

HVACR Clamp Meter with True RMS

The Fieldpiece SC440 is a mid-size clamp meter built for HVACR electrical and thermal testing. It combines True RMS voltage and current measurement with temperature, capacitance and microamp DC ranges for flame-diode checks. A heavy-duty magnet lets you hang the meter on metallic surfaces for hands-free work. Detachable leads and alligator probe tips support safe one-handed operation.

For HVACR technicians needing one tool

This meter suits technicians who want True RMS accuracy on variable-frequency drives plus inrush-current capture for compressor start-ups. It also covers everyday electrical ranges and safety features such as high-voltage LED and beeper alerts, continuity warning and push-button non-contact voltage detection. Buyers who require wireless data logging or specialised non-HVACR functions should look at something else.

True RMS sensing on VFDs

True RMS technology delivers higher-accuracy VAC and AAC readings on variable-frequency drives, a core requirement for modern HVACR systems. The 440 model includes an inrush-current feature to measure compressor starting amp draw. Dual display shows simultaneous values for faster diagnostics.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $237.99
Pricier than about 79% of the 3,030 comparable items (median $54.99).

Specifications

Product
Product typeClamp-On Meters

Questions about this item

Which SC440 model should I choose for HVACR work?

The SC440 is a single mid-size clamp meter that combines electrical and thermal HVACR ranges in one tool.

What does the True RMS capability mean when I measure on a VFD?

True RMS sensing gives higher-accuracy VAC and AAC readings on variable-frequency drives compared with average-responding meters.

What interface does the clamp use and what does it limit?

The jaw clamp interface measures current without breaking the circuit, and its opening size caps the maximum conductor diameter you can encircle.

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