Thermistor Probes

A core part of ETI’s probe range is the Thermistor probe series. These probes are unique in that the have a negative temperature co-efficient – this means they experience a decrease in electrical resistance when their temperature is raised. Thermistor probes are not recommended for the measurement of surface temperatures but are ideal for working in sub-zero temperatures (down to -40 °C) due to the PVC and fluoroethylene-propylene leads that can be used to manufacture them. Where requirements cannot be met from the existing standard range of probes, alternative designs can be manufactured.

Common thermistor probe types

Penetration

Perfect for measuring the internal temperature of liquids and semi-solids with high accuracy. Available in waterproof, fast response and colour-coded options to suit varying applications. Ideal for food safety, medical, and laboratory use where precision is essential.

Between-Pack

Designed for checking the temperature of packaged goods, ensuring food safety during storage and transport. These probes slide easily between boxes or vacuum-sealed packs to provide accurate readings without opening the packaging.

Slow Response

Dampened air and food simulant probes are designed to mimic product temperatures rather than react to rapid air fluctuations. Ideal for cold storage and food safety monitoring, they help maintain accurate temperature control.

Top Sellers

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Product code: 174-266
Brand: N/A
£43.50

Waterproof NTC thermistor penetration probe with lumberg connector

  • Suitable for liquids, semi-solids and granular materials
  • Response time less than five seconds.
  • Probe temperature range -40 to 150 °C
  • Accuracy ±0.4 °C between -20 & 100 °C
  • Ø3.3 x 130mm
£43.50
In stock
Product code: 174-168
Brand: N/A

300mm NTC thermistor penetration probe for Therma 20 thermometer

  • Ideal for liquids, semi-solids and more
  • Probe temperature range -40 to 150°C
  • Accuracy ±0.4 °C between -20 & 100 °C
  • Ø3.3 x 300mm
£40.00
In stock
Product code: 174-300
Brand: N/A
£38.00

Air or gas temperature probe for Therma 20 thermometer.

  • Measures air temperature in cold areas
  • Response time less than 2 seconds.
  • Probe temperature range -40 to 150°C
  • Accuracy ±0.4 °C between -20 & 100 °C
  • Ø3.3 x 130mm
£38.00
In stock
Product code: 174-060
Brand: N/A

Between pack temperature probe measures temperature between packs and boxes 

  • Response time less than 3 seconds.
  • Probe temperature range -40 to 150 °C
  • Accuracy ±0.4 °C between -20 & 100 °C
  • Ø6 x 130 mm
£50.00
In stock
Product code: 174-100
Brand: N/A
£40.00

Fast response Therma 20 NTC thermistor needle penetration probe

  • Response time less than four seconds.
  • Probe temperature range -40 to 150 °C
  • Accuracy ±0.4 °C between -20 & 100 °C
  • Ø2.6 x 130mm
£40.00
In stock
Product code: 174-166
Brand: N/A
£35.00

Colour-coded NTC thermistor penetration probe for Therma 20 thermometer

  • Ideal for liquids, semi-solids and more
  • Probe temperature range -40 to 150 °C
  • Accuracy ±0.4 °C between -20 & 100 °C
  • Ø3.3 x 130mm
Product code: 172-382
Brand: N/A

Liquid Temperature Probe for ETI Data Loggers

  • ideal for pharmaceutical applications
  • one, two or 3-metre lead options
  • response time < 6 seconds
  • temperature range -40 to 125 °C
  • accuracy ±0.4 °C between -20 & 100 °C
  • Ø3.3 x 100 mm
£58.00
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in production - delivery 10-14 working days
Product code: 172-006
Brand: N/A

Designed for use in food storage applications

  • Simulates food temperature in fridges, freezers etc.
  • Maximum probe temperature 150°C
  • Accuracy ±0.4 °C between -20 & 100 °C
  • Ø8 x 30mm with 1000mm FEP lead
£44.00
in production - delivery 10-14 working days
Product code: 172-000
Brand: N/A
£52.00

Waterproof stainless steel penetration probe

  • Ideal for liquids and semi-solids
  • Response time less than 4 seconds
  • Probe temperature range -40 to 150°C
  • Accuracy ±0.4 °C between -20 & 100 °C
  • Ø3.3 x 100mm
£52.00
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Product code: 172-168
Brand: N/A

General purpose data logger probe.

  • Wide range of applications
  • Response time less than 6 seconds
  • Probe temperature range -40 to 125 °C
  • Accuracy ±0.4 °C between -20 & 100 °C
  • Ø3.3 x 300mm
£53.00
In stock
Product code: 172-350
Brand: N/A

Food simulant temperature probe for data logger

  • Use in fridges, freezers and cold rooms
  • Probe temperature range -20 to 100 °C
  • Accuracy ±0.4 °C between -20 & 100 °C
  • One metre PUR/PVC lead
  • 9 x 100 x 100mm
£65.50
in production - delivery 10-14 working days
Product code: 172-090
Brand: N/A

Foil between pack temperature probe.

  • use to measure between packs & boxes.
  • one metre PUR/PVC lead
  • 40 x 50 mm with a 1 m PUR/PVC lead
£65.00
in production - delivery 10-14 working days

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