Lincoln Service Parts 1 › Lincoln Electric 9SM27083-3 ISOLATION MONITOR M27083-3 Lincoln Electric 9SM27083-3 ISOLATION MONITOR M27083-3 Sale Price: $2,055.35 Original Price: $2,363.65 ISOLATION MONITOR PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! ISOLATION MONITOR PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1