Particular applications where electronics can’t work properly:
- Nuclear sector
- High temperatures environments
- Or just applications that seek low-tech technologies with low dependance to electronics or to electrical energy.
Memory thermal indicator
A stack of bimetallic discs, arranged like “Belleville lock washers” allow a bellow function, which pushes up a mechanical element on an anti-reverse rack.
This indicates then the maximum temperature reached by the device.
This kind of indicator can be designed to measure temperatures up to 450°C
