These "micro" labels have four temperatures. The label indicates what temperature levels have been exceeded by changing color.
104°F to 435°F (40°C to 224°C)
L x W: 0.15 x 0.43" (4 x 11mm)
Micro Temperature Labels are most popular for confirming soldering temperatures. Available over a Range of 104°F to 435°F (40°C to 224°C).