We turn on, as seen in the pictures no error message.  Physically it’s in good condition.  There is a mark at the bottom right of the display, but it’s not effecting operations, and is barely noticeable 

The Tina TCM4 Series Radiometer Transcutaneous Carbon Dioxide Monitor is a portable unit designed for real-time measurements of carbon dioxide levels in patients. It features a color touchscreen and can perform six simultaneous measurements. It is non-invasive and can work at sites with poor perfusion. The unit comes with six plugs and is intended for use in healthcare settings.


The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies. the item is subject to FDA regulation, We will verify your status as an authorized purchaser of this item before shipping of the item.” Regardless of the origin of the equipment, documentation provided or identification appearing upon the equipment, the equipment described and offered here is in no way certified for, recommended for, or offered for any specific use. The purchaser agrees that the seller shall not be held responsible or liable for any injuries or damages, whether incidental or consequential, associated in any way with the equipment. The purchaser, by bidding on this equipment, indicates their acknowledgment of, and agreement to the terms of this disclaimer. it is the purchaser’s responsibility to have the item inspected and certified by a qualified professional before any user