A cationic electrodeposition coating composition containing no heavy metal-based anticorrosive agents such as lead compounds, and which is capable of forming a coating film with a high corrosion resistance. The method includes sending a message from a first node of the plurality of nodes destined for a second node of the plurality of nodes; setting a timer for the first node for receipt of an acknowledgment packet from the second node; determining if a wait acknowledge packet is received by the first node; and resetting the timer if the wait acknowledge packet is received by the first node. The two ring sections are pivotally attached together at one end so that the two ring sections can freely expand and contract around the fruit or vegetable.