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Thermistor Probes

A temperature probe housing is designed to both protect the sensor from environmental conditions as well to optimize the sensor’s performance. To be properly designed, a temperature probe not only performs well and is rugged enough for its environment, but ultimately, it must also be cost-effective.

MP Series: Micro and Mini Probes

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Micro and mini probes can fit inside small spaces and have phenomenal time response — all while having excellent environmental protection.

Typical applications:

  • Weather instruments

  • Medical devices

  • Laboratory equipment

 SP Series: Surface Probes

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Surface probes are great for monitoring the temperature of many different surfaces. They can be installed temporarily or permanently using various mounting methods.

Typical applications:

  • Battery monitoring

  • Vessel surface temperature

  • Hot/cold block surface temperature

 CE Series: Closed End Probes

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The closed end probe series is a general classification for temperature sensors mounted inside a housing for environmental and mechanical protection.

Typical Applications:

  • General temperature measurement

  • Handheld probes

 RT Series: Ring Terminal Probes

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Ring terminal probes are quick and easy to mount with screws onto various parts of all types of equipment.

Typical Applications:

  • Equipment monitoring

  • Battery terminals

 TP Series: Threaded Probes

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For measuring the internal temperature of a container, a threaded probe allows for the sensor to be protected from and have excellent thermal contact to the fluid inside the container.

Typical applications:

  • Bioreactor / controlled fermentation

  • Temperature controlled bath

  • Monitoring fluid temperature inside pipes

 HH Series: Hex Head Probes

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Screw ports can be built into equipment for easy installation of hex head probes that are highly thermally coupled to a desired temperature measurement location.

Typical applications:

  • Heating/cooling blocks

  • Electrical motors

  • Battery cases

 AF Series: Air Flow Probes

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For monitoring air temperature, specialty probe designs can be used which allow for a fast time response sensor to be protected while having good contact with air.

Typical applications:

  • Weather instruments

  • HVAC

  • Building monitoring

Example Products:

MP01 NTC Thermistor Micro Probe

SP01 NTC Thermistor Surface Probe

. . . All Datasheets

Typical environmental conditions that should be considered when designing a temperature probe are:

  • Electrical isolation

  • Humidity

  • Type of medium being measured

  • Temperature cycling

  • Vibration/shock

  • Exposure to harsh chemicals

  • Min/max temperature exposures

Performance objectives such as temperature measurement tolerances as well as desired response times are also important.

Our North Star Sensors team is ready to help you “navigate” the design path to finding that optimal temperature solution. We are ready to work with you at the beginning of your design program as well as review your finished specification. With our years of experience in designing, manufacturing and testing probe assemblies, we can help you reduce costs and field failures by assembling your temperature probes for you.