Maybe you're thinking of this (click on picture below). I use this model myself and it works great.
http://www.homecontrols.com/cgi-bin/hci.pl?pgm=co_disp&func=displ&prrfnbr=665 http://www.homecontrols.com/homecont...rremkitx_2.jpg
http://www.homecontrols.com/cgi-bin/hci.pl?pgm=co_disp&func=displ&prrfnbr=665 http://www.homecontrols.com/homecont...rremkitx_2.jpg