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SUPCO M500 digital megohmmeter with backlit display and soft carrying case

SUPCO

SUPCO M500 Megohmmeter 500V DC 20 megaohm to 1 gigohm measurement tool

SKU CH-KEHK-32GB4 MPN M500

Measures insulation resistance from 20 megaohm to 1 gigohm at 500V DC with digital display and dustproof case

  • TypeElectronic
  • 500 V DC test voltage for high-resistance insulation checks
  • Measures from 20 MΩ up to 1 GΩ for wide diagnostic range
  • Digital display gives clear resistance readings in the field
  • Dust-proof housing protects the instrument on job sites
  • Soft carrying case included for safe transport and storage

What it is

The SUPCO M500 is a handheld megohmmeter built for insulation-resistance testing on electrical circuits and equipment. It applies a 500 V DC test voltage and reads from 20 megaohm up to 1 gigohm on a digital display. The tool is intended for electricians and maintenance technicians who need to verify insulation integrity in the field.

Thermals noise power

Battery operation keeps the unit free of mains cords and eliminates fan noise during measurements. A dustproof housing protects the electronics in dirty environments. The tester gives a visual warning whenever the output exceeds 30 V, alerting the operator to the presence of hazardous voltage.

Deciding specification

The measurement range of 20 megaohm to 1 gigohm at 500 V DC determines whether this instrument covers the insulation values you must verify. If your application requires testing below 20 megaohm or above 1 gigohm, a different megohmmeter will be needed.

Highlights

  • 500 V DC test voltage for high-resistance insulation checks
  • Measures from 20 MΩ up to 1 GΩ for wide diagnostic range
  • Digital display gives clear resistance readings in the field
  • Dust-proof housing protects the instrument on job sites
  • Soft carrying case included for safe transport and storage

Specifications

BrandSupco
ModelM500
TypeElectronic

Questions about this item

How do I connect the test leads for a 500V DC insulation test on the SUPCO M500?

Attach the leads to the line and earth terminals, ensure the circuit is de-energised and discharged, then press the test button to apply 500V DC.

What routine care does the SUPCO M500 require after extended use?

Replace the battery when the low indicator appears and verify the greater-than-30V warning still activates before each session.

At what resistance does the SUPCO M500 stop displaying a measured value during a long test?

The display tops out at 1 gigohm; any insulation resistance above that reads as over-range.

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