What types of metals are in the new thermostat and the old thermostats?

we are doing a project and we are comparing the difference between the metals in the old thermostats and the new thermostats. please only answer if you know for sure. we want to know a list of the metals in the old thermostats and a list of the metals in a new thermostat. thank-you!!!

The old ones contained a mercury switch, the new ones use a thermistor and digital electronics to control things. So, it’s mercury vs silicon. The rest of the materials, such as the case, seem irrelevant.

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2 Responses to What types of metals are in the new thermostat and the old thermostats?

  1. lonelymaytagguy says:

    The old ones contained a mercury switch, the new ones use a thermistor and digital electronics to control things. So, it’s mercury vs silicon. The rest of the materials, such as the case, seem irrelevant.
    References :

  2. Roger R says:

    In the Older version the coil spring upon which the Mercury switch is attached is Tungsten steel which reacts by contracting in colder temperatures,expanding in warmer,thus tilting the mercury switch to either on or off.
    References :
    Knowledge