Tempilstik Temperature Indicating Sticks provides unmatched accuracy, confidence, and compliance, establishing it as the original and leading choice for surface temperature measurement. Available in 116 distinct temperatures ranging from 100°F (38°C) to 2000°F (1093°C), these specially engineered sticks are designed for precise temperature indication in pre-heating, interpass, and post-weld heat treating applications, making them indispensable for the most critical jobs. The stick melts instantly at its designated temperature for easy, immediate visual inspection—no calibration required—delivering 100% reliability and accuracy within +/- 1% of Fahrenheit and +/- 3% of Celsius. Compliant with industry standards like AWS D1.1, ASME Code Sections I, III, and VIII, and ANSI/ASME Codes B31.1 and B31.3, each Tempilstik is imprinted with a part number, temperature, and lot code for superior traceability. They are versatile for use on surfaces including steel, iron, aluminum, stainless steel, glass, plastic, and ceramic. Please note that the color of Tempilstiks is not part of their function, as the temperature signal relies solely on melting, and indicator color may vary without notice.