This is for

3 692

1 690

All 4 units have been tested and are working. All taking temp.correctly.

Ebay disclaimer

WHEN APPILCABLE

This  item has been cleaned and handled in accordance with the manufacturer's instructions.

"The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies. If so, do not bid on this item unless you are an authorized purchaser. If the item is subject to FDA regulation, I will verify your status as an authorized purchaser of this item before shipping of the item."