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Thermistors & Thermistor Probes

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Temperature Sensing across key industries

Our temperature sensor solutions are trusted across industries where accuracy and reliability are critical—from medical devices and HVAC systems to industrial equipment and energy applications. We support a wide range of operating environments with sensors tailored to meet industry-specific standards and performance demands.

sectors

We support a broad range of sectors with temperature sensing solutions tailored to each industry's unique requirements. From life sciences to industrial automation, our sensors deliver the accuracy, durability, and consistency trusted by engineers and OEMs alike.

HVAC

Precise temperature control is essential for efficient HVAC systems. Our sensors support consistent performance in heating, cooling, and ventilation applications—whether for residential units or large-scale commercial systems.

Industrial

Harsh environments demand reliable sensing. Our temperature solutions are designed to withstand vibration, moisture, and extreme temperatures across a variety of industrial equipment and automation systems.

Pool & Spa

Accurate water temperature monitoring is key to user comfort and system efficiency. Our sensors are built for durability and corrosion resistance in pool and spa control systems.

Food Processing & Handling

In food environments, hygiene and accuracy matter. Our sensors support critical temperature monitoring during processing, refrigeration, and storage—helping meet industry safety and compliance standards.

Medical

Medical-grade sensors must perform with absolute precision. Our solutions are used in diagnostic equipment, patient monitoring, and life science applications where accuracy and reliability are non-negotiable.

Aerospace

Aerospace systems operate under extreme conditions. Our temperature sensors help ensure safety and performance in flight-critical components, from engines to environmental controls.

Automotive

From engine monitoring to battery management, temperature sensing plays a vital role in modern vehicles. Our solutions are engineered to deliver accurate, stable readings in demanding automotive environments.

Temperature Sensing Insights

A red bead is on a silver wire on a white background.

PTC Thermistors, What They Are and How They Work

By EI Sensor • July 24, 2025
Learn what PTC thermistors are, how they work, and their key applications in temperature sensing, overcurrent protection, and industrial control systems.
A bunch of different types of sensors on a table

What is a Thermistor?

By EI Sensor • July 24, 2025
Thermistors are THERMally sensitive resISTORS whose electrical resistance varies predictably with their body temperature, making them ideal tools for monitoring and controlling temperature in numerous applications including household and industrial products.
A group of three different colored electronic components on a white surface.

Types of Temperature Sensors

June 2, 2025
Temperature sensors measure and quantify temperature in materials and internal or external environments.
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partner with ei sensor

Using the highest quality materials, state of the art equipment and proprietary production techniques, EI Sensor is dedicated to producing a temperature sensor that meets or exceeds our customers’ requirements. With a strong commitment to quality, continuous improvement is necessary. Our team continues to invest in research and development of new processes as well as enhancing existing processes that will result in a precise, efficient, cost effective thermistor, RTD or temperature probe assembly.