The standard totalizer enclosure supplied is a Nema 4x FRP (fiberglass reinforced plastic) enclosure.
Other materials such as painted carbon steel or stainless steel are available.
Besides housing the totalizer, this enclosure also serves as the field interface box for the signal cables.
A terminal strip is provided for that purpose.
Dimensions are 17.43"H x 16.75"W x 12"D.