A wireless beam-pen pointing device is proposed, which is designed for use with a computer unit, a presentation screen, and a beam pen. An infusion connector set comprising: a first connector; a septum received in the first connector; a second connector; a septum received in the second connector; and a flanged needle which penetrates both the septums in the first and second connectors when the first and second connectors are connected together. The kerf image comprises at least one kerf image row that is parallel to the at least one diagonal of the diamond chip image. The RUI allows the user to read the status of and control the irrigation components and ancillary equipment from any location in the field, without requiring the user to be at the irrigation component controls or at a specific location in the field. A clip may be attached to the case for mounting on a car visor, map pocket, or other location either within a vehicle or anywhere else desired.