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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  • 100mm Waterproof Stainless Steel Therma 20 Penetration Probe

    100mm Waterproof Stainless Steel Therma 20 Penetration Probe

    100mm Waterproof Stainless Steel Therma 20 Penetration Probe
    £62.00
    £74.40 inc. VAT
    £62.00 £62.00
    £74.40 inc. VAT
  • Air or Gas Wire Temperature Probe

    Air or Gas Wire Temperature Probe

    Air or Gas Wire Temperature Probe
    £30.00
    £36.00 inc. VAT
    £30.00 £30.00
    £36.00 inc. VAT
  • Roller Surface Temperature Probe - stainless

    Roller Surface Temperature Probe

    Roller Surface Temperature Probe
    £140.00
    £168.00 inc. VAT
    £140.00 £140.00
    £168.00 inc. VAT
  • Waterproof Heavy Duty Penetration Probe - straight lead

    Waterproof Heavy Duty Penetration Probe

    Waterproof Heavy Duty Penetration Probe
    £57.00
    £68.40 inc. VAT
    £57.00 £57.00
    £68.40 inc. VAT
  • PT100 - Liquid Temperature Probe 2000mm

    PT100 - Liquid Temperature Probe 2000mm

    PT100 - Liquid Temperature Probe 2000mm
    £144.00
    £172.80 inc. VAT
    £144.00 £144.00
    £172.80 inc. VAT
  • PT100 - Air/Gas Wire Probe

    PT100 - Air/Gas Wire Probe

    PT100 - Air/Gas Wire Probe
    £55.50
    £66.60 inc. VAT
    £55.50 £55.50
    £66.60 inc. VAT
  • Therma 22 Air or Gas Probe

    Therma 22 Air or Gas Probe

    Therma 22 Air or Gas Probe
    £38.50
    £46.20 inc. VAT
    £38.50 £38.50
    £46.20 inc. VAT
  • Rigid Between Pack Therma 22 Probe

    Rigid Between Pack Therma 22 Probe

    Rigid Between Pack Therma 22 Probe
    £55.50
    £66.60 inc. VAT
    £55.50 £55.50
    £66.60 inc. VAT
  • Plug-Mounted Air/Gas Temperature Probe (133-301) - Type K

    Plug-Mounted Air/Gas Temperature Probe (133-301)

    Plug-Mounted Air/Gas Temperature Probe (133-301)
    £20.00
    £24.00 inc. VAT
    £20.00 £20.00
    £24.00 inc. VAT
  • PT100 - DIN Liquid Temperature Probe

    PT100 - DIN Liquid Temperature Probe

    PT100 - DIN Liquid Temperature Probe
    £100.00
    £120.00 inc. VAT
    £100.00 £100.00
    £120.00 inc. VAT
  • Probe & Clip for ThermaQ®, ThermaQ® Blue & BlueTherm® One

    Probe & Clip for ThermaQ®, ThermaQ® Blue & BlueTherm® One

    Probe & Clip for ThermaQ®, ThermaQ® Blue & BlueTherm® One
    £29.50
    £35.40 inc. VAT
    £29.50 £29.50
    £35.40 inc. VAT
  • T-shaped Penetration Probe 300mm - 300 mm

    T-shaped Penetration Probe 300mm

    T-shaped Penetration Probe 300mm
    £59.00
    £70.80 inc. VAT
    £59.00 £59.00
    £70.80 inc. VAT
  • Magnet Surface Temperature Probe - Type K - Ø20 x 9mm, 1m lead

    Magnet Surface Temperature Probe

    Magnet Surface Temperature Probe
    £29.00
    £34.80 inc. VAT
    £29.00 £29.00
    £34.80 inc. VAT
  • PT100 - Penetration Probe with T-shaped Handle - 4 mm

    PT100 - Penetration Probe with T-shaped Handle

    PT100 - Penetration Probe with T-shaped Handle
    £78.00
    £93.60 inc. VAT
    £78.00 £78.00
    £93.60 inc. VAT
  • Air or Gas Wire NTC Temperature Probe

    Air or Gas Wire NTC Temperature Probe

    Air or Gas Wire NTC Temperature Probe
    £23.50
    £28.20 inc. VAT
    £23.50 £23.50
    £28.20 inc. VAT
  • Burger Temperature Probe - 12 mm

    Burger Temperature Probe

    Burger Temperature Probe
    £52.00
    £62.40 inc. VAT
    £52.00 £52.00
    £62.40 inc. VAT
  • Small Handled Needle Penetration Probe

    Small Handled Needle Penetration Probe

    Small Handled Needle Penetration Probe
    £32.00
    £38.40 inc. VAT
    £32.00 £32.00
    £38.40 inc. VAT
  • Q Series Smokehouse Cooking Probe - braided fibreglass

    Q Series Smokehouse Cooking Probe

    Q Series Smokehouse Cooking Probe
    £48.00
    £57.60 inc. VAT
    £48.00 £48.00
    £57.60 inc. VAT
  • New
    Weighted Griddle Surface Probe

    Weighted Griddle Surface Probe

    Weighted Griddle Surface Probe
    £150.00
    £180.00 inc. VAT
    £150.00 £150.00
    £180.00 inc. VAT
  • Ribbon Surface Temperature Probe - Right-Angled - type K

    Ribbon Surface Temperature Probe - Right-Angled

    Ribbon Surface Temperature Probe - Right-Angled
    £41.00
    £49.20 inc. VAT
    £41.00 £41.00
    £49.20 inc. VAT
  • Oven Temperature Probe - Type K

    Oven Temperature Probe

    Oven Temperature Probe
    £63.50
    £76.20 inc. VAT
    £63.50 £63.50
    £76.20 inc. VAT
  • T Shaped Oven Probe

    T Shaped Oven Probe

    T Shaped Oven Probe
    £67.00
    £80.40 inc. VAT
    £67.00 £67.00
    £80.40 inc. VAT
  • Chisel-Tip Penetration Probe

    Chisel-Tip Penetration Probe

    Chisel-Tip Penetration Probe
    £34.50
    £41.40 inc. VAT
    £34.50 £34.50
    £41.40 inc. VAT
  • PT100 - Between Pack Probe

    PT100 - Between Pack Probe

    PT100 - Between Pack Probe
    £52.50
    £63.00 inc. VAT
    £52.50 £52.50
    £63.00 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.