Temperature Indicator, Accuracy +/-1 Percent F, +/-3 Percent C, Container Type Stick, Indicator Temperature 550 Degrees F, Standards ANSI/ASME Code B 32.1 and B 31.3, ASME Code Sec. I, III and VII, AWS D 1.1, NIST Traceable, Compatible Material Type Iron, Steel, Includes Adjustment Ring, Protective Holder, Shirt-Clip, Process Annealing, Interpass Temperature Monitoring, Post-Weld Heat Treating, Pre-Heating, Stress-Relieving, Tip Width 1/2 in. This item has been restricted from sale in the following state (s): []