A housing module (601) for use with a smart package (110) has a main body suitable for having an electronic device (605) affixed thereto. The main body includes one or more retention wings (603a, 603b) extending from the main body. The one or more retention wings are sized and configured for co-operation with a slot (88a, 88b) associated with the smart package (110) such that the housing module (601) is retainable substantially within the smart package (110). The one or more retention wings (603a, 603a) are shaped, sized and configured to co-operate with an end-stop of the slot (88a, 88b) for locating the housing module (601) within the smart package (110).
