When reliability stands the test of time

Three generations of megohmmeters. One unwavering commitment to precision.

Megohmmeters designed to last

A few weeks ago, a customer returned a Sefelec megohmmeter manufactured in... 1979, the M990UF.

After nearly 50 years of service, the instrument came back to our facility for maintenance. Far more than a testament to product longevity, it demonstrates Sefelec’s commitment to designing robust, durable, and accurate measurement instruments capable of supporting customers for generations.

From our first analog megohmmeters to today’s digital solutions, one thing has never changed: our commitment to insulation resistance measurement excellence.

Over the decades, technologies have evolved with:

More intuitive user interfaces
Test automation capabilities
Advanced communication features
Result traceability with Winpass 5000
Ever-higher performance levels

Yet our mission remains the same: delivering reliable measurements to ensure the safety, compliance, and quality of electrical and electronic equipment.

FROM 1979 TO TODAY: THREE GENERATIONS OF INNOVATION

Fond gris, 3 générations de Mégohmmètres - 3 generation megohmmeter

The result of rigorous design choices

In a world where many pieces of equipment are replaced after just a few years, seeing an instrument still operating after nearly half a century is a true source of pride.

This longevity is the result of rigorous design choices:

Components selected for their reliability
Controlled and mastered manufacturing processes
Long-term technical support and maintenance
Measurement accuracy preserved over time

Test equipment is a strategic investment, and its value is also measured by its ability to remain reliable and performant year after year.

A legacy built for the future

Receiving a 1979 megohmmeter in our workshop is a tangible reminder of the history we have been building alongside our customers since the company was founded.

Over the years, multiple generations of products have been developed. Technologies have evolved. Industrial requirements have changed as well. Yet our commitment remains the same: designing reliable, accurate, and long-lasting test instruments.

Nearly 50 years after it was first put into service, this megohmmeter continues to remind us that true performance is performance that stands the test of time.