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Thermistors & Thermistor Probes

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Automotive temperature sensors

From engine performance to battery management, accurate temperature sensing is essential in today’s vehicles. Our automotive sensors are built to withstand heat, vibration, and harsh operating conditions—delivering the reliability and precision required for modern automotive systems.

Our Autotmotive Sensing Solutions

We offer temperature sensing solutions designed to meet the rigorous demands of automotive systems. Whether for combustion engines, EV batteries, or climate control, our sensors deliver dependable performance in high-heat, high-vibration environments.

Thermistors

Reliable and highly sensitive NTC thermistors engineered for accurate temperature measurement across a wide range of industries.

Thermistor Probes

Encapsulated thermistor probes designed for durability and fast response in demanding applications like HVAC, medical, and industrial systems.

RTD Sensors

Platinum RTD sensors deliver stable, repeatable performance and precise temperature readings in high-accuracy environments.

RTD Probes

Rugged RTD probe assemblies built for consistent, long-term temperature monitoring in industrial and automotive systems.

Custom Sensors

Custom temperature sensors tailored to meet unique form, function, and performance requirements—designed in partnership with your engineering team.

Temperature Sensing Insights

Assorted temperature sensors with various terminal types and wire colors.

Thermistor Averaging Sensors Explained

January 22, 2026
Thermistor averaging sensors measure multiple points for steadier HVAC, lab, and industrial control, improving accuracy, reliability, and efficiency.
Five black round thermistors with silver leads, varying in size.

What Is an Inrush Current Limiter? Types, Uses, & Benefits

January 9, 2026
Learn what an inrush current limiter is, how NTC and PTC types work, key benefits, and applications from EI Sensor.
HVAC technician uses gauges on an air conditioning unit; red and blue gauges attached.

How Temperature Sensors Improve Efficiency in HVAC Systems

January 9, 2026
Learn how temperature sensors improve HVAC efficiency and control while EI Sensor delivers reliable thermistors and RTDs for modern HVAC systems.

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.