| Preferred Engineering (PE) custom designs and manufactures urethane connectors which mate to product connectors. These connectors come in all shapes, sizes, colors, and various durometers to better serve each customer’s unique test specifications. A part-in-place switch may be used to initiate each test. This switch is located and protected in the head of the connector to ensure durability and longevity. LED’s and switches can also be placed on the connector for test purposes. The connectors feature quick disconnect for maintenance and a choice of high current pins or blades. All connectors are built with maintainability in mind and can come with an optional air eject system.