AHD Series connectors were developed in response to the overwhelming need for an economic alternative to todays existing diagnostic product options. Designed specifically as a cost-conscious, reliable alternative, intermateable to industry standard 6 and 9 pin connectors, the AHD Series is ideal for any situation where either controlled and/or uncontrolled environmental conditions exist.AHD Series Connectors offer both a smooth, non-sealing option for controlled applications, as well as an environmentally-sealed, threaded option for more demanding applications.AHD Series connectors are completely compatible with all other existing standard products industry-wide.