Thermostat: the temperature is controlled by the flow

In a few sentences

In brief

It is a different component from the temperature sensor.

Useful to know

The thermostat is involved in managing the cooling flow to reach and maintain an appropriate operating mode. HELLA also describes wax element performances and electrical heating. [1]

Do not confuse the thermostat with the temperature sensor: one controls a flow, the other passes a measurement. At an unexpected temperature, first specify which parameter you observe and under what mode. The same external housing does not prove the same opening temperature or electrical control. The selection of the part follows the exact engine and execution.

Sources

For further detail and to check the information:

[1] HELLA — coolant thermostats ↗