Abstract: An emissions testing equipment support includes a probe carrier movable on a walkway and which carries an emissions sampling probe supported for movement along a probe guide for insertion into and removal from a monitoring port. The elevation of the probe guide is adjustable to permit raising and lowering of the probe to align the probe with the monitoring port. In one embodiment, the probe carrier is an upright rack having inverted u-shaped end sections which carry a probe guide rail and an emissions sample support tray.