Quality Thermistor
Manufacturing Company in Vista, CA

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Quality Thermistor
read moreQTI 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.
About Us
read moreAt QTI, we've spent over 40 years building a reputation that goes well beyond the products we make. That's why for us, solving any problem is no problem. We understand that the highest quality products require mission-critical parts that refuse to fail. We also recognize that many of your competitors sacrifice the quality of their temperature sensors for cheap solutions that cost them big in the long run. We're here to ensure you don't make sacrifices. That's why we put all of our temperature sensors, as well as those of our competitors, through rigorous, real-world testing-to relentlessly pursue the excellence you demand.