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

NTC Thermistor Waterproof Temperature Probe with Lumberg Connector NTC Thermistor Waterproof Temperature Probe with Lumberg Connector
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NTC Thermistor Waterproof Temperature Probe with Lumberg Connector
£43.50

£52.20 inc VAT

Therma 20 Penetration Probe 174-168 Therma 20 Penetration Probe
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Therma 20 Penetration Probe
£40.00

£48.00 inc VAT

air or gas probe air or gas probe
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Therma 20 Air or Gas Probe
£38.50

£46.20 inc VAT

rigid between pack probe 174-060
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Between Pack Temperature Probe
£55.50

£66.60 inc VAT

fast response penetration probe fast response penetration probe
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Fast Response Therma 20 Temperature Probe
£42.00

£50.40 inc VAT

colour-coded penetration probe - green end cap colour-coded penetration probe - white end cap
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Select options
Colour Coded Penetration Probe
£37.00

£44.40 inc VAT

172-006 Damped Air Temperature Probe 172-006 Damped Air Temperature Probe
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Damped Air Temperature Probe
£52.00

£62.40 inc VAT

172-000 Therma 20 pentration probe
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Therma 20 Penetration Probe
£62.00

£74.40 inc VAT

810-085 810-085
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Replacement probe for Indoor/Outdoor Thermometer
£4.00

£4.80 inc VAT

Replacement probe for Therma-Hygrometer 810-158 Replacement probe for Therma-Hygrometer 810-158
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Replacement probe for Therma-Hygrometer
£5.00

£6.00 inc VAT

810-935 penetration probe
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Penetration Probe - 810-935
£6.50

£7.80 inc VAT

Oven Penetration Probe for EcoTemp 810-955 Oven Penetration Probe for EcoTemp 810-955
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Oven Penetration Probe for EcoTemp®
£8.00

£9.60 inc VAT

1.5m Air Wire Probe for EcoTemp 810-954 1.5m Air Wire Probe for EcoTemp 810-954
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1.5m Air Wire Probe for EcoTemp®
£8.00

£9.60 inc VAT

3m Air Wire Probe for EcoTemp 3m Air Wire Probe for EcoTemp
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3 m Air Wire Probe for EcoTemp®
£8.50

£10.20 inc VAT

Penetration Probe for EcoTemp 810-951 Penetration Probe for EcoTemp 810-951
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Penetration Probe for EcoTemp®
£11.00

£13.20 inc VAT

heavy duty NTC thermistor probe with T-shaped handle heavy duty NTC thermistor probe with T-shaped handle
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Heavy Duty NTC Thermistor Probe with T-shaped Handle 1000mm
£97.00

£116.40 inc VAT

170-100 pH Thermistor Penetration Probe 170-100 pH Thermistor Penetration Probe
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170-100 pH Thermistor Penetration Probe
£33.50

£40.20 inc VAT

170-101 pH Thermistor penetration probe 170-101 pH Thermistor penetration probe
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170-101 pH Thermistor Penetration Probe
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£40.20 inc VAT

170-350 170-350
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Food Simulant Temperature Probe
£42.50

£51.00 inc VAT

170-175 Corkscrew probe T-shaped NTC thermistor corkscrew probe
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T-shaped NTC Thermistor Corkscrew Probe
£125.00

£150.00 inc VAT

170 -169 T-shaped penetration probe 170-169
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T-shaped Penetration Probe for Therma 20
£46.00

£55.20 inc VAT

170-372 170-372
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Air or Gas Wire NTC Temperature Probe
£23.50

£28.20 inc VAT

170-090 170-090
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Foil Between Pack NTC Temperature Probe
£29.00

£34.80 inc VAT

ChefAlarm/DOT penetration probe 810-071
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Penetration Probe for DOT, Smoke or ChefAlarm®
£18.00

£21.60 inc VAT

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