THERMAX SINGLE LEVEL IRREVERSIBLE LABELS 34ºC (50/PACK)   The Thermax Irreversible Temperature Recording Label is a series of temperature test labels that will permanently record the highest temperature reached by the label. These self-adhesive labels consist of a series of temperature-sensitive elements sealed between heat-resistant substrates with transparent windows. Each element changes color distinctly as its rated temperature is exceeded. The changes are irreversible, providing a temperature history of the surface being monitored. The labels will not de-laminate when removed for reference and can be attached to an inspection report to serve as a permanent record. The temperature-sensitive elements are phase-change indicators which use the sharply defined melting points of a series of specially purified organic chemicals to give the unique, high precision, color change effects. Each temperature element uses a different chemical compound and is made separately by applying a coating containing the chemical to a special absorptive paper substrate. When the rated temperature is exceeded, the chemical melts and is absorbed by the substrate, causing a permanent color change. Up to ten elements can be combined together on a single label.

• Immediate Response
• Permanent Record of Highest Temperature Achieved
• Oil, Water, and Steam Resistant
• Inexpensive and Easy to Use

 

SPECIFICATIONS

Temperature Range: 29°C to 290°C Accuracy:

• Less than 100°C is ±1°C
• 100°C to 154°C is ±1.5°C
• Greater than 154°C is ±4°C

Silver to Black Color Change: Below 204°C Orange to Black Color Change: Above 210°C Last Black Event is the Highest Temperature Achieved