TTE Laboratories: the Pipette Calibration and Repair Industry Leader

Founded in 1989 by molecular scientists, TTE Laboratories was the world’s first affordable, metrology-driven, ISO 17025 and 8655 compliant pipette service provider. In 1997, TTE launched, the first ecommerce site to provide pipettes and related supplies at guaranteed low prices.

Today, TTE Laboratories continues to innovate as it is the only company that provides an integrated approach to laboratory liquid handling that consistently delivers the most accurate results for the lowest lifetime cost: the GMP Select™ line of products and services.

Looking for a complete, compliant and easy way to meet the pipette calibration requirements of your laboratory?  New customers are eligible for a 30% discount on their first calibration, or call us about our free trial service.  We would love to hear from you.  Call 800-242-6022.

EZCal and EZCal Complete

Accurate. Convenient. All-Inclusive. No Additional Cost.


With EZCal™ and EZCal Complete™ you no longer have to trade off calibration accuracy and reliability for outstanding convenience and price.

Both revolutionary solutions combine the convenience and minimal downtime of traveling pipette calibrators with the accuracy and reliability of ISO 8655 compliant TTE Labs. And while both EZCal™ and EZCal Complete™ provide free pipettes (so you don't suffer downtime while yours are being calibrated), free 24-hour turn around and free shipping, neither solution costs you anything extra to use.

Tour Our State-of-the-Art Labs

And learn what Metrology-driven pipette calibration can do


TTE Laboratories is unique in providing free 24 turnaround: within 24 hours of your pipettes arrival, they are on their way back. Guaranteed.

TTE also understands the many factors that affect measurement uncertainty in pipette calibration and take great pains to reduce them in our tightly controlled laboratory. Our Metrology-driven calibration lab (metrology is the science of measurement) minimizes uncertainty and maximizes your results accuracy and reliability.

Unique Support for ISO 8655

And the longest warranties in the pipette calibration industry


TTE Laboratories is the only pipette calibration provider—whether onsite or lab-based—that meets both the well known ISO 17025 standard and the far-more-important-for-pipettes ISO 8655 standard.

And thanks to our best-in-industry quality, we can provide a full 12 month guarantee on parts and workmanship: twice the pipette calibration industry standard!