Temperature Indicators

Markal Thermomelt® temperature indicator crayons offer economical accurate temperature readings and are ideal for welding and metal fabrication.  Certified Thermomelt® Heat-Stiks® are corrosion resistant for use in nuclear, military, and other corrosion resistant applications.  

Certified Thermomelt

Nuclear Pre-Certified, accurate temperature indicating stick

Thermomelt

Accurate temperature indicating stick

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