Temperature Indicator Stick, Accuracy +/-1 Percent F, +/-3 Percent C, Container Capacity 3 fl oz, Container Type Stick, Indicator Temperature 150 Degrees F, Standards ANSI/ASME Code B31.1 and B31.3, ASME Code Sec. I, III and VIII, AWS D1.1, Compatible Material Type Iron, Steel, Includes Slip- Metal Holder, Process Interpass Temperature Monitoring, Post-Weld Heat Treating, Pre-Heating, Resistance Properties Slip , Tip Width 3/8 in