RCP-Recorders Charts & Pens is a leading supplier of superior quality recorder pens and marking systems for nearly every recording application. We offer a complete line of Recorder Pens including: Disposable pens, Recorder ink cartridges, Recorder ink, Plotter pens, and pen arms. We supply quality OEM replacment pens for leading manufactuers such as: Honeywell, Partlow, Barton, Yokogawa and more.