A method, system and barcode reader for transmitting barcode scan information from a barcode reader to an external imaging system including one or more image capturing devices when the barcode reader is within a field of view of the external imaging system. Responsive to successfully decoding an indicia, the barcode reader transmits, to the external imaging system via an optical signal assembly, a first optical signal based at least in part on the indicia. Responsive to detecting an object within a product scanning region of the barcode reader and no successful decode of an indicia, the barcode reader transmits, to the external imaging system via the optical signal assembly, a second optical signal indicating the object being passed within the product scanning region with no successful decode.