Patent ID: 8790501

Claim:
A sensor, comprising: a housing; at least two electrodes within the housing, an electrolyte within an interior volume of the housing, the electrolyte providing ionic conductivity between the electrodes; and a vent member comprising a first section comprising a portion extending through a passage in the housing and at least one extending member that extends from the first section through at least a portion of the interior volume of the housing so that the electrolyte does not wet an entirety of a surface of the at least one extending member that is in contact with the interior volume and the at least one extending member is in contact with a volume of gas within the interior volume of the housing and exterior to the at least one extending member regardless of the orientation of the housing, the portion extending through the passage in the housing and the at least one extending member of the first section being porous so that gas can diffuse through the first section from the interior of the housing to an exterior of the housing via the vent member.