Experts in temperature sensing technology

QTI is the unparalleled leader in world-class temperature sensing technology with over 40 years of proven expertise in NTC and PTC thermistors, RTDs, thermocouples, and more. We custom-engineer the most reliable, high-quality temperature sensors for mission-critical applications.

Why the Best Choose QTI

The QTI Trifecta of Excellence


High-Quality Products

Custom solutions that refuse to fail


100% On-Time Delivery

What you need, when you need it


Authentic Relationships

Commitment to win no matter what

Industries That Rely on QTI

Leaders demand a true business partner