DEVICE: Chart, X-Ref Spirotech S010-06, 8.5" x 11",Grn (00817081025545)

A mains electricity (AC-powered) electronic device, which may include internal rechargeable batteries, intended to receive an input signal (e.g., from a physiological amplifier, signal conditioner, computer) which it converts and transcribes onto paper so that the information is stored in the form of a permanent document (hard copy). It will typically include a paper chart driven at constant speed by a motor and a pen(s) that moves back and forth in response to the signal, a printing array (e.g., thermal or electrostatic), or another device for printing on paper. It may be stationary or portable and will typically be used in the absence of a built-in chart recorder.