24 HOUR TYPE; STEEL MATERIAL; 5-1/8 INCH WIDTH X 3-7/16 INCH DEPTH X 7-7/8 INCH HEIGHT SIZE; GRAY FINISH; 1 TO 12 PER DAY MAX. NUMBER OF OPERATIONS; 1 HOUR MIN. OFF TIME; 1 HOUR MIN. ON TIME; UL (CANADA AND US), CSA (CANADA AND US) APPROVAL