I have this one and it works like a champ, took only a few seconds to pair
http://www.kwikset.com/products/details/electronic-locks/912tnl-trl-zbc4-11p-smt.aspx
I have this one and it works like a champ, took only a few seconds to pair
http://www.kwikset.com/products/details/electronic-locks/912tnl-trl-zbc4-11p-smt.aspx