This is a lightly used and well cared for thermocouple monitor that was used in the engineering department of a lighting fixture manufacturing company. It was recently taken out of service when the company closed. It was kept properly calibrated and is in full working condition. It is complete except that somehow while cleaning and photographing it, we lost the knob. Another can surely be purchased online.
It is in cosmetically good condition, showing slight discoloration from age but otherwise a nice clean example.