A thumb-triggered barcode scanner including a strap, an elastic base body configured for covering at least a portion of a back of a hand of a user and including a plurality of textile layers, a trigger device including an actuation element, a trigger surface through which the actuation element is configured to be actuated, and a protective wall surrounding the actuation element, one or more cables configured to provide an electrical connection, and a holder arranged on a backhand portion of the elastic base body configured to be positioned on the back of the hand, facing away from the hand. The holder has at least two electrical contact elements and is configured to replaceably receive an electronics module including a barcode scanner and to electrically connect the electronics module to the trigger device via the one or more cables.