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8 Level Temperature Indicator Labels 37°C to 254°C


Scale: °C and °F

Range: 37ºC to 254ºC on 5 Labels

Type: 8 Level Indicators

Reaction Time: Max 4 sec.

up to 99ºC +/- 1ºC
100ºC to 154ºC +/- 1.5ºC
160ºC to 280ºC +/-(1% + 1ºC)

Accuracy & Conformity: Click Here

Education: How do they work




This eight level label is our most popular irreversible temperature indicator label. It gives the largest possible area of adhesion and highly visible temperature cells. It provides a record of the maximum temperature reached, reacting according to the temperature of the surface to which it is applied. These temperature indicator labels are especially useful for monitoring temperature in locations where the use of thermometers or electronic devices is not practical. 

Adhesive backed label that reacts to increasing temperature with a permanent colour change. Five options available from 37ºC to 254ºC. Versatile, accurate & 100% reliable.

Size: 51mm x 18 mm (2" x 0.7")
Scale: °C and °F
Range: 37°C to 254°C on 5 Labels
Reaction Time: Max 4 sec.
Colour change: one way permanent
Type: Vertical Adhesive backed labels
Shelf Life: One year
  • up to 99°C +/- 1°C
  • 100°C to 154°C +/- 1.5°C
  • 160°C to 280°C +/-(1% + 1°C)
Accuracy & Conformity: Click Here

The eight level label is our most popular irreversible indicator. It gives the largest possible area of adhesion and the most visible number of temperature cells.

The label comes in five ranges, A to E, with temperature ranges from 37°C to 254°C (99°F to 489°F). The label measures 51 x 18 mm (2.00" by 0.7") and carries temperatures in both Centigrade and Fahrenheit on the scale.

It is widely used in a variety of engineering applications from monitoring temperatures during transportation, providing evidence of temperature achievement in a thermal cleaning process and for running safety checks on machinery or warranted moving parts.

  • monitoring transportation and distribution
  • providing evidence of a thermal disinfection temperature achievement
  • confirming soldering temperatures
  • monitoring engine component temperatures for warranty claims
  • confirming temperature integrity in machine maintenance
  • warning users that environmental conditions exceed temperature limits

If placing the indicators in an environment where they can be exposed to oil or aggressive conditions we recommend the labels are sealed in place on a clean dry surface with one or more layers of clear epoxy.

When using these indicators, ensure they are kept only in refrigeration temperatures and NOT deep freeze situations. The labels must be applied to a dry, clean surface to ensure proper adhesion. Use in a vacuum or an environment where microwave heating is taking place will significantly impact the functionality of the label and we do not recommend the product is used in these conditions.

Please also note that touching the indicator may activate the indicator in summer months, especially if ambient temperature is at or around the lowest activation temperature on the label.

Need a bigger quantity of 1000+ labels or your own logo on the labels? We've made a wide range of bespoke designs for for customers who need something different. Email us with some details of your requirement and we'll quote you a price within 48 hours.

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