A flow sensor assembly , comprising: a housing defining at least part of an inlet flow port and at least part of an outlet flow port , the housing having a first side and an opposing second side, with the first side having a recess formed therein that defines: a first side wall of a fluid channel , where the fluid channel extends between the inlet flow port and the outlet flow port ; a first side wall of a bypass channel , where the bypass channel includes an upstream tap in fluid communication with the fluid channel at a first location, and a downstream tap in fluid communication with the fluid channel at a second location; wherein at least one of the upstream tap and the downstream tap is positioned perpendicular to the fluid channel , and the bypass channel has a generally s-shaped curve adjacent to the upstream tap or the downstream tap , and wherein the housing includes a molded part defining three or more sides of the fluid channel and three or more sides of the bypass channel ; a cover sealingly engaged to the housing such that the cover , in conjunction with the housing , collectively define the fluid channel and the bypass channel , wherein the cover is positioned on the molded part of the housing to define a fourth side of the fluid channel and a fourth side of the bypass channel ; and a flow sensor secured relative to the cover such that the flow sensor is in fluid communication with the bypass channel and is capable of measuring a flow rate of fluid flowing through the bypass channel , wherein the recess formed in the first side of the housing further defines one or more partitions having a length extending in a direction parallel to fluid flow in the fluid channel , wherein the one or more partitions engage the cover and are configured to laminarize fluid flow. a first side wall of a fluid channel , where the fluid channel extends between the inlet flow port and the outlet flow port ; a first side wall of a bypass channel , where the bypass channel includes an upstream tap in fluid communication with the fluid channel at a first location, and a downstream tap in fluid communication with the fluid channel at a second location; wherein at least one of the upstream tap and the downstream tap is positioned perpendicular to the fluid channel , and the bypass channel has a generally s-shaped curve adjacent to the upstream tap or the downstream tap , and wherein the housing includes a molded part defining three or more sides of the fluid channel and three or more sides of the bypass channel ; a cover sealingly engaged to the housing such that the cover , in conjunction with the housing , collectively define the fluid channel and the bypass channel , wherein the cover is positioned on the molded part of the housing to define a fourth side of the fluid channel and a fourth side of the bypass channel ; and a flow sensor secured relative to the cover such that the flow sensor is in fluid communication with the bypass channel and is capable of measuring a flow rate of fluid flowing through the bypass channel , wherein the recess formed in the first side of the housing further defines one or more partitions having a length extending in a direction parallel to fluid flow in the fluid channel , wherein the one or more partitions engage the cover and are configured to laminarize fluid flow. <EOS>