Duncan Instruments Canada Ltd. - Electronic Measurement since 1968

We Calibrate Thousands of Instruments a Year

In-house experts. Fast turnaround. Trusted since 1968.

Our Fused Test Leads: Built for Safety

Cold-weather flexible. German fuses. Technician-trusted.

Dielectric Strength Testers—Trusted by Canada’s Best

Rugged, reliable, and calibrated by the same experts who use them.

Current Transformers—CSA Approved, Class 1 Accuracy

Precision-engineered. Ready to ship. OEM pricing available.

Why Buy from Duncan Instruments?

We’ve been Canada’s trusted source for electrical test equipment since 1968.

But we’re more than just a supplier—we calibrate and service the same gear we sell.

That means you get reliable products, expert support, and no surprises.

We don’t just ship boxes. We stand behind what’s inside.


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Tools & Tips for Technicians

Current Transformer Selection Made Easy – A Professional’s Guide

Current Transformer Selection Made Easy – A Professional’s Guide

Need a CT fast? This guide makes it easy to select the right current transformer for your project. We break down CT ratio, window size, mounting style, and accuracy — with clear links to the models we stock in Canada.

Understanding Precision Power Analyzers: A Guide for Engineers and Metrologists

Understanding Precision Power Analyzers: A Guide for Engineers and Metrologists

Power analyzers are essential tools for engineers and metrologists working with high-precision systems. Learn what to look for and why Infratek sets the standard.

🧠 How to Choose the Right Universal Programmer: FAQ from Duncan Instruments

🧠 How to Choose the Right Universal Programmer: FAQ from Duncan Instruments

🧠 How to Choose the Right Universal Programmer: FAQ from Duncan Instruments Whether you’re working on automotive electronics, industrial equipment,...
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