Devices, systems, and methods for interacting instrumentation with high and/or low energy systems are disclosed. In some illustrative embodiments, a sensor assembly for level measurement of high and/or low energy systems may comprise an instrumentation head to determine a level of media in a tank; a coupler including a body having a mounting end for connection to equipment of a high or low energy system and a receiving end for receiving connection of the instrumentation head, a coaxial hardline extending between the mounting and receiving ends and including a conduction tip arranged near the mounting end; and a sealing system including a first seal section disposed between the conduction tip and the receiving end of the body.