| 摘要 |
A sensor unit S for water heating systems, particularly for water boilers, is designed with a single housing H as a combined relative pressure and temperature sensor and has a ceramic support element C carrying an electronic circuit E including separate circuit zones E1, E2 for detecting the pressure and the temperature of the water, the support element including an active functional element M and being directly contacted by the water. The water contact area of said ceramic support element is separated from the electronic circuit E by a seal in the housing H.
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