Lincoln Service Parts 2 › Lincoln Electric 9ST10642-549 THERMAL DETECTION TUBE T10642-549 Lincoln Electric 9ST10642-549 THERMAL DETECTION TUBE T10642-549 Sale Price: $1,097.15 Original Price: $1,261.72 THERMAL DETECTION TUBE PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! THERMAL DETECTION TUBE PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1