OD8mm,or12mm,2~18 circuits, gold contacting,7mOhm electric noise,IP54,metal housing. OD8mm,or12mm,2~18 circuits, gold contacting,7mOhm electric noise,IP54,metal housing. OD8mm,or12mm,2~18 circuits, gold contacting,7mOhm electric noise,IP54,metal housing.