Lincoln Service Parts 2 › Lincoln Electric 9SS27985-2 VOLTAGE SENSOR KNOB S27985-2 Lincoln Electric 9SS27985-2 VOLTAGE SENSOR KNOB S27985-2 Sale Price: $4.44 Original Price: $5.11 VOLTAGE SENSOR KNOB PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! VOLTAGE SENSOR KNOB PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1