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Thermistors & Thermistor Probes

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Aerospace temperature sensors

Aerospace systems demand precision under extreme conditions—and our temperature sensors are built to perform. From engine components to environmental controls, our solutions deliver accurate, stable measurements in high-vibration, high-temperature, and mission-critical environments.

Our Aerospace Sensing Solutions

We provide temperature sensing solutions engineered for the demands of aerospace applications—where accuracy, reliability, and resilience are non-negotiable. Designed to perform in extreme conditions, our sensors support critical systems from propulsion to cabin climate control.

Thermistors

Thermistors offer fast response and high sensitivity, making them ideal for applications requiring precise temperature monitoring. Available in a variety of resistance values and sizes to suit diverse design needs.

Thermistor Probes

Encased for protection and ease of use, thermistor probes deliver accurate temperature readings in air, liquid, or surface environments. A reliable choice for HVAC, medical, and commercial systems.

RTD Sensors

Known for long-term stability and precision, RTD sensors provide accurate measurements across a wide temperature range. Ideal for critical applications in industrial, medical, and scientific settings.

RTD Probes

RTD probes combine durable construction with high-accuracy sensing, built to perform in challenging conditions. Commonly used in process control, automation, and high-reliability environments.

Custom Sensors

When standard sensors don’t fit, our custom solutions are tailored to your exact specifications. We work closely with you to design and deliver sensors that integrate seamlessly and perform reliably in your unique application.

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.