Discount on extra sensors

I replied to a post in the "Getting Simplisafe" forum but thought I also saw the question here.  The promo code "MOVER15" worked for me today and I got 15% a large order of extra SS3 sensors my wife and I are giving to my daughter and son-in-law as a house warming gift for their new house.  15% is better than nothing.  The sale ended about a month or so ago but the promo code worked for me and may work for you! Good luck.