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Thermistors & Thermistor Probes

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Epoxy Coated

Epoxy Coated Thermistor Sensors from EI Sensor are designed to provide low-cost and reliable temperature measurement and protection in harsh environments.

Glass Body Thermistor Sensors

Featuring a durable epoxy coating, these thermistors are highly resistant to chemicals and mechanical stress, making them ideal for demanding applications. EI Sensor offers a broad selection of epoxy thermistors, each tailored to meet the specific needs of industries such as HVAC-R, medical, and industrial equipment. Whether for precision control or general temperature monitoring, these low-cost sensors ensure accurate and consistent performance. With a focus on innovation and quality, EI Sensor’s epoxy-coated thermistors deliver dependable results across a wide temperature range.

Designed to handle the rigors of harsh environments, epoxy-coated thermistors are ideal for temperature sensing applications requiring durable construction, high accuracy, and long-term stability. These sensors are particularly effective in applications exposed to humidity, chemicals, or mechanical stress, thanks to their protective epoxy coating.


In the HVAC-R industry, epoxy thermistors are essential for maintaining precise temperature control in heating, ventilation, and refrigeration systems, ensuring energy efficiency and reliability. Medical devices, which demand accuracy and consistency, also rely on these thermistors for precise patient monitoring and equipment operation.


In industrial equipment, epoxy-coated thermistors provide robust temperature measurement for machinery operating under extreme conditions, such as in motors and engines. They are also used in building automation systems, helping regulate environmental controls to optimize comfort and energy use. Additionally, the food processing industry benefits from their reliability in temperature-sensitive environments, assuring safe handling and storage conditions.



For Original Equipment Manufacturers (OEMs) across a variety of sectors, epoxy thermistors are a go-to solution for applications that require long-lasting, dependable sensors. With their versatility and ability to perform consistently under challenging conditions, these thermistors offer an economical and effective solution to a wide array of temperature sensing needs.

Thermistor Probes

our collection

EPT1 PRECISION INTERCHANGEABLE BARE LEAD WIRES

EPT2 EPOXY COATED, PRECISION INTERCHANGEABLE KYNAR LEAD WIRES

EBL EPOXY COATED, BARE LEAD WIRES

EKL EPOXY COATED, KYNAR LEAD WIRES

ETL EPOXY COATED, TEFLON LEAD WIRES

EPLB EPOXY COATED, ENAMEL LEAD WIRES

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.