A mounting assembly for an automatic meter reading (AMR) unit includes a body having a head and an elongate stem extending from a bottom surface of the head. The elongate stem is sized and configured to be received in and extend through a hole formed in a cover of a pit, and the head has a size greater than a size of the hole formed in the cover of the pit. A nut defines a central aperture sized and configured to receive the elongate stem of the body, and a support channel has a pair of spaced apart arms each including a ledge configured to be received in a slot formed in the elongate stem of the body. The support channel defines an opening that is sized and configured to receive at least a portion of the AMR unit therein.