A meter box and lid unit has a meter box. The meter box has end walls and opposing side walls, an interior cavity and an opening. A lip extends along the walls. The lip has notches therein. The lid has a first portion and a separate second portion, the first and second portions covering the opening when the lid bears the lip. The first portion has a receptacle for receiving a transmitter. The first portion has retainers depending therefrom. The first portion is capable of moving from a first position to a second position, wherein when the first portion in the first position, the retainer and the notch are aligned and the first portion can be removed from the box. With the first portion in the second position, the retainer cooperates with the lip to retain the first portion on the lip. With the first portion in the second position, the second portion can be removed from the box while the first portion is retained thereon.