A molded housing may enclose an electronic component and include an electrically conductive contact component embedded within an exterior wall to conduct electricity between an interior and an exterior of the casing. The contact component may include two knurled areas separated by a recessed groove. The knurled areas and recessed groove may be coplanar with the exterior wall. The knurled areas and recessed groove may form an interface with the molded casing to seal the casing against ingress of liquid into the interior. The molded casing may include an upper housing and a lower housing formed from a combination of a rigid member and a flexible member. The rigid member may have a plurality of rigid regions, and the flexible member may have a plurality of flexible regions formed between neighboring rigid regions. The flexible member may be molded onto the rigid member using a two-shot injection molding process. In some examples, the contact component may be secured to a contact carrier, where the contact carrier is then secured to the exterior housing.