Markal 086733 Thermomelt® Heat Stik Temperature Indicators Thermomelt^® Heat Stik Temperature Indicators, 400° F Rating – Each

33% bigger and stronger than competitive brands
Accurate, fast, low-cost method for measuring surface temperatures
When desired temperature is reached, the mark quickly melts to a glossy, transparent-appearing liquid
Accurate to +/-1% of stated Fahrenheit temperature
Ideal for applications such as annealing, forging, welding, bending, forming and any place where temperature measuring is necessary
Meets ANSI/ASME guidelines