Abstract: A carrier for installing an RFID tag in a utility marker tube provides a centering plate fitting against an upper edge of the tube and oriented and positioned either by inner tube walls and/or the outer tube wall periphery to locate a downwardly extending transducer support tab holding the transducer within the tube. The centering plate may be held in place by a separate or integrated cap retaining the centering plate while sealing the tube against environmental contamination.

Abstract: A carrier for installing an RFID tag in a utility marker tube provides a centering plate fitting against an upper edge of the tube and oriented and positioned either by inner tube walls and/or the outer tube wall periphery to locate a downwardly extending transducer support tab holding the transducer within the tube. The centering plate may be held in place by a separate or integrated cap retaining the centering plate while sealing the tube against environmental contamination.

Abstract: A lighting system has a twist-lock lighting controller that is electrically coupled to at least one light source. The twist-lock lighting controller has a translucent cover in which an optical sensor is positioned to sense ambient light for controlling the light source. A shade element having a canopy is positioned on the twist-lock lighting controller such that the canopy blocks direct sunlight from entering the twist-lock lighting controller through the translucent cover, thereby significantly reducing operating temperatures within the twist-lock lighting controller.

Abstract: A heat exchange apparatus having a housing that includes a first region and a second region, and a wall separating the first region from the second region, is disclosed. The second region includes a fluid flow entry port and a fluid flow exit port to define a fluid flow path, and a heat exchanger exposed to the fluid flow path. The heat exchanger includes first and second portions in thermal communication with each other, where the first portion is disposed at the first region and the second portion is disposed at the second region. The fluid flow path is isolated from the first region and provides for the removal of heat from the first region.