| 摘要 |
<p>The present invention relates to a consumption meter with at least two casing parts, the consumption meter is a meter, such as an ultrasonic flow meter, for measuring a quantity value corresponding to a consumed quantity, e.g. hot or cold water. The consumption meter comprises a measuring means for measuring the quantity value, an electronic circuit for operating the consumption meter and a casing for housing the measuring means and the electronic circuit. The casing comprises a first polymer-based casing part having a first water permeability and an at least second casing part having an at least second water permeability, the first polymer-based casing part enveloping the second casing part, and wherein the at least second water permeability is lower than the first water permeability.</p> |
