The TempDot FreezeCheck Label, Model 54000, is used to indicate an out of range temperature below 32°F (0°C). If an out-of-range temperature is reached, the indicator changes irreversibly from clear to white and the check mark is no longer visible.
Product specifications for Model 54000.

ColdMark® ThermoLabels, Models 51001-51002: Available in either 32°F/0°C or 26°F/-3°C, these stick-on labels can be applied to a product, package, carton or master pack of items sensitive to extremely cold temperatures.

When exposed at or below its response temperature for approximately 60 minutes, the liquid in the label will turn cloudy with streaks of violet. Once warmed up above the response temperature, the liquid changes irreversibly to a uniform violet color.
Product specifications for Model 51001-51002.

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The TempDot® Time-Temperature Label, Model 51030-51032, is a low-cost label that indicates a time period of up to 60 minutes that an exposure above the threshold temperature has occurred. When the temperature exceeds the threshold a color change begins, but stops when the temperature falls under the threshold, showing the cumulative degree minutes time of exposure, important for many QA applications. Three models with respective temperature thresholds of 41°F (5°C), 46°F (8°C) and 50°F (10°C) are available.
Product specifications for Model 51030-51032.

WarmMark® ThermoLabels, Model 51013-51035, monitor temperature of products during shipping, storage or processing. Response temperatures available range from 0°F (-18°C) up to 99°F (37°C).

These self-adhesive labels apply directly to product, package, carton or master pack. When activated, irreversible color change occurs once response temperature is reached or exceeded. Red indicates if exposure was for a brief, moderate or prolonged period of time.

You can see at a glance if a temperature abuse has occurred, providing permanent records for quality assurance purposes.
Product specifications for Model 51013-51035.

TempDot High Temp Labels, Model 53146 and Model 54114, can be used in commercial dishwashers to ensure that the recommended temperature of 160°F (71°C) has been reached. The label can be attached to glassware, silverware or directly to a dishwasher rack. When the temperature reaches 160°F (71°C) or more, the label changes irreversibly from dark to orange.
Product specifications for Model 53146 and Model 54114.

High Temperature ThermoLabels, Model 50109-50809, are accurate, inexpensive, disposable heat indicators providing a permanent record of temperature changes. They come with one, three, five or eight temperature steps, available from 90°F (32°C) to 500°F (260°C).

When rated temperatures are reached at each step, an irreversible black color change occurs. These stick-on labels affix directly to the clean dry interior or exterior surface of products or equipment.

Applications include manufacturing, processing, storage, shipping, shelf temperature of heat sensitive products, for dishwashers, heat sanitizing, ovens, dryers, retort and curing operations.