The FITO Profi-line heat detector HA-163 detects intense heat a fixed temperature of 60 degrees Celsius.

Model HA-163 is equipped with a 9V  Carbon-Zinc battery. This model replaces model GS-402.
Model HA-163L is equipped with with a durable 9V lithium battery. This model replaces model GS-402L.

For specifications, see the datasheet.