Schneider Electric Merten System M room temperature controller MTN534944 in color white is a central plate.This room temperature controller belongs to M-Arc, M-Elegance, M-Plan, M-Plan glass, M-Smart, M-Star, System M aesthetic group.Its mounting box can be recessed into the surface with flush type.It is 55.4 mm in width, 54.9 mm in height, and 15 mm in depth.And it reaches IP20 degree of protection too.And it is mercury free as well as heavy metal free, taking care of the environment all the time.In addition, this room temperature controller is specially designed for residential, small commercial, facilitating the daily needs easily and safely.System M range is based on 4 different surfaces and materials. With 9 different design variations and over 280 functions, the system can meet any customer demand.