MULTI-STAGE TEMPERATURE INDICATING DEVICE

摘要

A multi-stage temperature indicating device having a first elongate housing and an indicator assembly, the indicator assembly being slidably positioned in a first bore of the first elongate housing and having a middle indicator stem and an inner indicator stem. The multi-stage temperature indicating device also has a means for urging an inner indicator stem, to a second set stroke, out of the middle indicator stem, and for sliding the middle indicator stem, to a first set stroke, out of the first elongate housing.