1,Automatic waterproof connector 2,Electric metal connector 3,Screw couping mechanism 4,CE Certified Brand ... °C~+100°CCircularConnectorDetailed Product Description 1,Automatic waterproof connector 2,Electric metal connector 3,Screw couping mechanism 4,CE Certified 2012 ... Contact Diameter0.811.52.5Contact Resistance≤10mΩ≤5mΩ≤2.5mΩ≤1mΩ Specification: 2012 New Electric Metal Waterproof Connector