Ports for sensing one or more parameters in an HVAC system and methods for installing such ports. In one illustrative embodiment, a port provides a fluid passageway through a wall of an HVAC component such as an air duct. The port may be formed of a hollow stem member having a first end and a second end and a head member positioned therebetween. The port may include an anchor member for anchoring the port to a wall of the HVAC component. In some cases, the anchor member may secure the port within the wall such that the head member forms a substantially fluid tight seal with the wall.