RELIABILITY GUARANTEED
FOR LIFE
For more than 50 years we’ve supported reliability teams by building tools that last and standing behind them with lifetime service, support, & warranty.
RELIABILITY GUARANTEED
FOR LIFE
For more than 50 years we’ve supported reliability teams by building tools that last and standing behind them with lifetime service, support, & warranty.
How it works
Keeping your warranty active is simple:
Register your product once
Send it for annual calibration
That is it. We handle the rest.
What you get:

Guaranteed Uptime
Annual calibration and lifetime coverage keep your instruments running without interruption.

Lifelong Partnership
From registration to decades of service, SDT is with you every step of the way.

Regulatory Assurance
Your measurements remain accurate, traceable, and audit-ready year after year.

What is Included
When registered and maintained with annual calibration, your coverage includes:
- Full lifetime protection against defects in materials and workmanship
- Free repairs or replacements if a covered failure occurs
- Ongoing calibration support to keep your data accurate and dependable
- Global service center access so you are never far from help
- Transferable warranty when ownership changes, as long as registration is maintained
This Lifetime Warranty applies to the following SDT products:
Why calibration matters
Your SDT instrument is only as good as the accuracy of its measurements. That is why calibration is required once per year. It restores your device to “like new” condition and keeps your warranty active.


Getting service is easy
Built to last. Backed for life.
SDT has been helping reliability teams for more than 50 years. We build tools that endure, and we back them with a warranty that does the same.