▎ 摘　　要

NOVELTY - The sensor (10) has a first temperature sensor (18) for detecting an internal temperature being arranged inside a housing (12). A second temperature sensor (20) detects an ambient temperature to adjust thermal conductivity of the housing such that ratio of the internal temperature to the ambient temperature is obtained to enable or prevent heat exchange between an interior (14) of the housing and an environment (26). The housing changes the thermal conductivity connected to a voltage and/or a current source. The housing is provided with a graphene layer (24). USE - Sensor e.g. filling level sensors, limit level sensors or pressure sensors. ADVANTAGE - The sensor performs efficient operation of the sensor under extreme climatic conditions by adapting the thermal conductivity, temperatures prevailing in an interior of the sensor and vicinity of the sensor to ensure possible climatic conditions prevail in the interior of the sensor for electronic components. The sensor prevents the internal temperature from changing too quickly due to very large differences between the internal temperature within comfort range and the ambient temperature from the comfort temperature range. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for operating a sensor. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the sensor (Drawing includes non-English language text). Sensor (10) Housing (12) Inner space (14) Electronic components (16) Temperature sensors (18, 20) Control unit (22) Graphene layer (24) Environment (26)