The vertical 70 Series low-profile design blends narrow width with new home decors. The universal subbase, for use with all 1E78 models, is designed to mount on a 2″ x 4″ junction box or directly to the wall. There is also an optional wallplate for use in retro-fit applications. The 70 Series thermostats are battery powered, making them easy to install and compatible with most heating and cooling systems. The vertical 70 Series is perfect for new construction customers who want a quick and easy transition to job completion.