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: 170-101
Brand: N/A
£32.00

pH Thermistor penetration probe for 8100 pH & temperature meter - 170-101 

  • Replacement probe for 8100 pH kit
  • Probe dimensions Ø2.6 x 130 mm
£32.00
In stock
Product code: 170-350
Brand: N/A

Thermistor Food Simulant Temperature Probe for accurate cold food monitoring
  • Designed for cold food storage
  • Slow response time simulates food temperatures
  • Reads from -20 to 100 °C
  • Accurate to ±0.4 °C

£42.50
In stock
Product code: 170-175
Brand: N/A

T-shaped NTC thermistor corkscrew probe

  • Ideal for frozen foods etc.
  • Response time less than 9 seconds.
  • Probe temperature range -40 to 150 °C
  • Accuracy ±0.4 °C between -20 & 100 °C
  • Ø8 x 100mm
£99.00
Last items in stock
Product code: 170-169
Brand: N/A

Heavy Duty T-shaped penetration probe

  • Ideal for industrial or food processing
  • Response time less than 4 seconds
  • Probe temperature range -40 to 150 °C
  • Accuracy ±0.4 °C between -20 & 100 °C
  • Ø4 x 100 mm
£44.50
Last items in stock
Product code: 170-372
Brand: N/A

Fast response air or gas temperature probe

  • Ideal for fridges, freezers etc.
  • Response time less than 2 seconds.
  • Probe temperature range -40 to 150 °C
  • Accuracy ±0.4 °C between -20 & 100 °C
  • Ø3.7 x 30mm with 1m FEP lead
£23.00
In stock
Product code: 170-090
Brand: N/A
£29.00

Foil between pack NTC temperature probe

  • Ideal for between packs & boxes etc
  • Response time less than 3 seconds
  • Accuracy ±0.4 °C 
  • 40 x 50mm with 1m FEP lead
  • Probe temperature range -20 to 75 °C
£29.00
Last items in stock
Product code: 810-071
Brand: N/A
£16.00

DOT, ChefAlarm or Smoke penetration probe

  • Made specifically for the DOT, Smoke & ChefAlarm
  • Reduced tip probe for faster readings
  • Supplied with 1.2 metre braided lead
  • Ø3.5 x 150 mm
£16.00
In stock
Product code: 810-072
Brand: N/A
£17.00

Mini needle probe for DOT / ChefAlarm or Smoke

  • Even faster response time < 2 seconds
  • Ideal for Sous Vide cooking
  • Made specifically for the DOT, Smoke or ChefAlarm
  • Ø1.6 x 90 mm 
£17.00
In stock
Product code: 810-078
Brand: N/A
£15.00

penetration probe for DOT, ChefAlarm or Smoke thermometers

  • Reduced tip for faster response
  • Continuous monitoring in ovens or similar.
  • Made specifically for the DOT, Smoke or ChefAlarm
  • Ø3.5 x 114 mm or 305 mm
Product code: 810-076
Brand: N/A
£15.00

DOT / ChefAlarm or Smoke oven probe and clip

  • Made specifically for the DOT, Smoke or ChefAlarm
  • Incorporates clip to attach to oven shelf
  • Supplied with 1.2 metre braided lead
  • Extra spare clips available
  • dimensions Ø3.5 x 50 mm
Product code: 810-079
Brand: N/A

Lengthen your probes an extra metre with this durable pro series cable extension
£14.00
In stock

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