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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  • Fibreglass Wire Oven Temperature Probe - type K

    Fibreglass Wire Oven Temperature Probe

    Fibreglass Wire Oven Temperature Probe
    £13.50
    £16.20 inc. VAT
    £13.50 £13.50
    £16.20 inc. VAT
  • Q Series Penetration Probe - 64 mm

    Q Series Penetration Probe

    Q Series Penetration Probe
    £48.00
    £57.60 inc. VAT
    £48.00 £48.00
    £57.60 inc. VAT
  • High Temperature Fibreglass Wire Probe - type K

    High Temperature Fibreglass Wire Probe

    High Temperature Fibreglass Wire Probe
    £19.00
    £22.80 inc. VAT
    £19.00 £19.00
    £22.80 inc. VAT
  • Fast Response Therma 22 Penetration Probe

    Fast Response Therma 22 Penetration Probe

    Fast Response Therma 22 Penetration Probe
    £51.00
    £61.20 inc. VAT
    £51.00 £51.00
    £61.20 inc. VAT
  • Foil Between Pack NTC Temperature Probe

    Foil Between Pack NTC Temperature Probe

    Foil Between Pack NTC Temperature Probe
    £29.00
    £34.80 inc. VAT
    £29.00 £29.00
    £34.80 inc. VAT
  • Thermistor Food Simulant Temperature Probe

    Thermistor Food Simulant Temperature Probe

    Thermistor Food Simulant Temperature Probe
    £42.50
    £51.00 inc. VAT
    £42.50 £42.50
    £51.00 inc. VAT
  • Fast Response Temperature Probe T Thermocouple - straight lead

    Fast Response Temperature Probe T Thermocouple

    Fast Response Temperature Probe T Thermocouple
    £34.50
    £41.40 inc. VAT
    £34.50 £34.50
    £41.40 inc. VAT
  • T-shaped Penetration Probe 100mm - type K

    T-shaped Penetration Probe 100mm

    T-shaped Penetration Probe 100mm
    £48.50
    £58.20 inc. VAT
    £48.50 £48.50
    £58.20 inc. VAT
  • Therma 22 Colour-Coded Penetration Probe - White

    Therma 22 Colour-Coded Penetration Probe

    Therma 22 Colour-Coded Penetration Probe
    £45.00
    £54.00 inc. VAT
    £45.00 £45.00
    £54.00 inc. VAT
  • High Temperature Thermometer Probe - type K

    High Temperature Thermometer Probe

    High Temperature Thermometer Probe
    £42.00
    £50.40 inc. VAT
    £42.00 £42.00
    £50.40 inc. VAT
  • PT100 - RTD Penetration Probe

    PT100 - RTD Penetration Probe

    PT100 - RTD Penetration Probe
    £70.00
    £84.00 inc. VAT
    £70.00 £70.00
    £84.00 inc. VAT
  • Corkscrew temperature probe - type K

    Corkscrew temperature probe

    Corkscrew temperature probe
    £92.00
    £110.40 inc. VAT
    £92.00 £92.00
    £110.40 inc. VAT
  • PT100 - Liquid Temperature Probe

    PT100 - Liquid Temperature Probe

    PT100 - Liquid Temperature Probe
    £68.00
    £81.60 inc. VAT
    £68.00 £68.00
    £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
    £46.00 £46.00
    £55.20 inc. VAT
  • Small Handled Penetration Probe - type K

    Small Handled Penetration Probe

    Small Handled Penetration Probe
    £29.00
    £34.80 inc. VAT
    £29.00 £29.00
    £34.80 inc. VAT
  • Spring-Loaded Surface Temperature Probe - Type K

    Spring-Loaded Surface Temperature Probe

    Spring-Loaded Surface Temperature Probe
    £47.50
    £57.00 inc. VAT
    £47.50 £47.50
    £57.00 inc. VAT
  • Waterproof Bell Surface Temperature Probes - straight

    Waterproof Bell Surface Temperature Probes

    Waterproof Bell Surface Temperature Probes
    £63.00
    £75.60 inc. VAT
    £63.00 £63.00
    £75.60 inc. VAT
  • High Temperature Thermometer Probe 300 mm - type K

    High Temperature Thermometer Probe 300 mm

    High Temperature Thermometer Probe 300 mm
    £47.00
    £56.40 inc. VAT
    £47.00 £47.00
    £56.40 inc. VAT
  • Foil Between Pack Temperature Probe

    Foil Between Pack Temperature Probe

    Foil Between Pack Temperature Probe
    £29.00
    £34.80 inc. VAT
    £29.00 £29.00
    £34.80 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
    £43.50 £43.50
    £52.20 inc. VAT
  • Crocodile Clip & Oven Probe for ThermaQ®, ThermaQ® Blue, BlueTherm® One

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

    Crocodile Clip & Oven Probe for ThermaQ®, ThermaQ® Blue, BlueTherm® One
    £35.00
    £42.00 inc. VAT
    £35.00 £35.00
    £42.00 inc. VAT
  • Q Series Air Probe & Clip

    Q Series Air Probe & Clip

    Q Series Air Probe & Clip
    £43.00
    £51.60 inc. VAT
    £43.00 £43.00
    £51.60 inc. VAT
  • Fast Response Meat Probe - type K

    Fast Response Meat Probe

    Fast Response Meat Probe
    £44.00
    £52.80 inc. VAT
    £44.00 £44.00
    £52.80 inc. VAT
  • T-shaped NTC Thermistor Corkscrew Probe

    T-shaped NTC Thermistor Corkscrew Probe

    T-shaped NTC Thermistor Corkscrew Probe
    £125.00
    £150.00 inc. VAT
    £125.00 £125.00
    £150.00 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.