Abstract: An inventory control collar incorporating a resident memory for use on a cylindrical neck of a storage container comprising an electrically insulative housing having a central opening sized to fit around the cylindrical neck of the storage container, and a circumferential groove located in the top of the housing. A first conductive ring inserted into the circumferential groove in the housing is electrically connected to the first terminal of the memory and a second conductive ring inserted into the circumferential groove in the housing is electrically connected to the second terminal of the memory. An electrically insulative retainer ring is inserted into the circumferential groove between the first and second rings. Data is conducted to and from the memory by electrically contacting the first and second conductive rings.