All Probes

Full range of ETI temperature probes for measuring foods, liquids, surfaces and air/gases. Includes thermocouple, thermistor and PT100 probes. 

All Probes

ETI's range of thermometer probes is designed for accurate temperatures across a wide range of applications.

From high accuracy penetration probes for food safety to robust pipe probes for precise HVAC measurements, our probes are built with professionals in mind.

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  • Plug-Mounted FEP Plastic Probe (133-155)

    Plug-Mounted FEP Plastic Probe (133-155)

    Plug-Mounted FEP Plastic Probe (133-155)

    £37.50
    £45.00 inc. VAT
    Regular price £37.50 Sale price £37.50
    Sale price inc. VAT £45.00 inc. VAT
  • High Temperature Thermometer Probe

    High Temperature Thermometer Probe

    High Temperature Thermometer Probe

    £42.00
    £50.40 inc. VAT
    Regular price £42.00 Sale price £42.00
    Sale price inc. VAT £50.40 inc. VAT
  • PT100 - RTD Penetration Probe

    PT100 - RTD Penetration Probe

    PT100 - RTD Penetration Probe

    £70.00
    £84.00 inc. VAT
    Regular price £70.00 Sale price £70.00
    Sale price inc. VAT £84.00 inc. VAT
  • Corkscrew temperature probe

    Corkscrew temperature probe

    Corkscrew temperature probe

    £92.00
    £110.40 inc. VAT
    Regular price £92.00 Sale price £92.00
    Sale price inc. VAT £110.40 inc. VAT
  • Plug-Mounted Stainless Steel Penetration Probe (133-161)

    Plug-Mounted Stainless Steel Penetration Probe (133-161)

    Plug-Mounted Stainless Steel Penetration Probe (133-161)

    £22.00
    £26.40 inc. VAT
    Regular price £22.00 Sale price £22.00
    Sale price inc. VAT £26.40 inc. VAT
  • PT100 - Liquid Temperature Probe

    PT100 - Liquid Temperature Probe

    PT100 - Liquid Temperature Probe

    £68.00
    £81.60 inc. VAT
    Regular price £68.00 Sale price £68.00
    Sale price inc. VAT £81.60 inc. VAT
  • T-shaped Penetration Probe for Therma 20

    T-shaped Penetration Probe for Therma 20

    T-shaped Penetration Probe for Therma 20

    £46.00
    £55.20 inc. VAT
    Regular price £46.00 Sale price £46.00
    Sale price inc. VAT £55.20 inc. VAT
  • Pipe Surface Temperature Probe

    Pipe Surface Temperature Probe

    Pipe Surface Temperature Probe

    £67.00
    £80.40 inc. VAT
    Regular price £67.00 Sale price £67.00
    Sale price inc. VAT £80.40 inc. VAT
  • High Temperature Mineral Insulated Flexible Probe

    High Temperature Mineral Insulated Flexible Probe

    High Temperature Mineral Insulated Flexible Probe

    £43.00
    £51.60 inc. VAT
    Regular price £43.00 Sale price £43.00
    Sale price inc. VAT £51.60 inc. VAT
  • Miniature Thermocouple Plug or Socket

    Miniature Thermocouple Plug or Socket

    Miniature Thermocouple Plug or Socket

    £3.50
    £4.20 inc. VAT
    Regular price £3.50 Sale price £3.50
    Sale price inc. VAT £4.20 inc. VAT
  • Small Handled Penetration Probe

    Small Handled Penetration Probe

    Small Handled Penetration Probe

    £29.00
    £34.80 inc. VAT
    Regular price £29.00 Sale price £29.00
    Sale price inc. VAT £34.80 inc. VAT
  • Spring-Loaded Surface Temperature Probe

    Spring-Loaded Surface Temperature Probe

    Spring-Loaded Surface Temperature Probe

    £47.50
    £57.00 inc. VAT
    Regular price £47.50 Sale price £47.50
    Sale price inc. VAT £57.00 inc. VAT
  • 170-101 pH Thermistor Penetration Probe

    170-101 pH Thermistor Penetration Probe

    170-101 pH Thermistor Penetration Probe

    £33.50
    £40.20 inc. VAT
    Regular price £33.50 Sale price £33.50
    Sale price inc. VAT £40.20 inc. VAT
  • Thermocouple Lead Set

    Thermocouple Lead Set

    Thermocouple Lead Set

    £56.00
    £67.20 inc. VAT
    Regular price £56.00 Sale price £56.00
    Sale price inc. VAT £67.20 inc. VAT
  • General Purpose | Industrial Probe (PVC Lead)

    General Purpose | Industrial Probe (PVC Lead)

    General Purpose | Industrial Probe (PVC Lead)

    £42.00
    £50.40 inc. VAT
    Regular price £42.00 Sale price £42.00
    Sale price inc. VAT £50.40 inc. VAT
  • Waterproof Bell Surface Temperature Probes

    Waterproof Bell Surface Temperature Probes

    Waterproof Bell Surface Temperature Probes

    £63.00
    £75.60 inc. VAT
    Regular price £63.00 Sale price £63.00
    Sale price inc. VAT £75.60 inc. VAT
  • Air or Gas Temperature Probe

    Air or Gas Temperature Probe

    Air or Gas Temperature Probe

    £32.00
    £38.40 inc. VAT
    Regular price £32.00 Sale price £32.00
    Sale price inc. VAT £38.40 inc. VAT
  • High Temperature Thermometer Probe 300 mm

    High Temperature Thermometer Probe 300 mm

    High Temperature Thermometer Probe 300 mm

    £47.00
    £56.40 inc. VAT
    Regular price £47.00 Sale price £47.00
    Sale price inc. VAT £56.40 inc. VAT
  • Binder Temperature Probe

    Binder Temperature Probe

    Binder Temperature Probe

    £32.50
    £39.00 inc. VAT
    Regular price £32.50 Sale price £32.50
    Sale price inc. VAT £39.00 inc. VAT
  • Foil Between Pack Temperature Probe

    Foil Between Pack Temperature Probe

    Foil Between Pack Temperature Probe

    £29.00
    £34.80 inc. VAT
    Regular price £29.00 Sale price £29.00
    Sale price inc. VAT £34.80 inc. VAT
  • Plug-Mounted Mini Fast Response Probe (133-151)

    Plug-Mounted Mini Fast Response Probe (133-151)

    Plug-Mounted Mini Fast Response Probe (133-151)

    £25.00
    £30.00 inc. VAT
    Regular price £25.00 Sale price £25.00
    Sale price inc. VAT £30.00 inc. VAT
  • Stainless Steel Probe Clip for Dial Thermometers

    Stainless Steel Probe Clip for Dial Thermometers

    Stainless Steel Probe Clip for Dial Thermometers

    £2.00
    £2.40 inc. VAT
    Regular price £2.00 Sale price £2.00
    Sale price inc. VAT £2.40 inc. VAT
  • NTC Thermistor Waterproof Temperature Probe with Lumberg Connector

    NTC Thermistor Waterproof Temperature Probe with Lumberg Connector

    NTC Thermistor Waterproof Temperature Probe with Lumberg Connector

    £43.50
    £52.20 inc. VAT
    Regular price £43.50 Sale price £43.50
    Sale price inc. VAT £52.20 inc. VAT
  • 1.5m Air Wire Probe for EcoTemp®

    1.5m Air Wire Probe for EcoTemp®

    1.5m Air Wire Probe for EcoTemp®

    £8.50
    £10.20 inc. VAT
    Regular price £8.50 Sale price £8.50
    Sale price inc. VAT £10.20 inc. VAT

Frequently Asked Questions

What is the difference between a thermocouple, thermistor, and RTD probe?

Thermocouples offer the widest temperature range and fastest response. Thermistors provide excellent accuracy for food and everyday applications. RTD/PT100 probes deliver the highest accuracy and long-term stability for laboratory, calibration, and critical process measurements.

How do I recalibrate my thermometers and probes?

You can send your equipment to ETI’s UKAS calibration laboratory for accredited recalibration. We will return your instruments to you within their specified accuracy range and with a new calibration certificate.

Learn more about our UKAS calibration services.

Can I use the same probe for different applications?

Some probes are versatile enough for multiple uses, but specialist probes often provide more accurate and reliable results. For example, a surface probe is better suited to measuring hot plates than a standard immersion probe.

What probe do I need for food temperature measurements?

For food safety checks, penetration or immersion probes are the most common choice. Thermistor probes are particularly popular because of their high accuracy in food temperature ranges.

How do I choose the right temperature probe?

Start with the sensor type, as this defines performance.

  • Thermocouple – fast, wide temperature range, robust. Ideal for general industrial and food applications.
  • Thermistor – very fast and highly accurate, but over a narrower range. Common in food and laboratory use.
  • RTD (Pt100 / Pt1000) – highest accuracy and stability. Best for precision measurement and calibration environments.

Once you have chosen your sensor type, select the probe style based on the application:

  • Penetration for solids and food products
  • Immersion for liquids
  • Air probes for ambient monitoring
  • Surface probes for plates, grills and equipment

Then consider response time, durability, and whether certification or calibration is required for compliance.

Read our probe buying guide to learn more.