it's not just the direct connection to it the lock actually supports encryption through a security class written by Schlage for zwave. very few others have supported it for a couple of reasons (1. Schlage held out as long as possible to release the code for others to integrate it, 2. they ripped out other parts of the previous firmware to make room for the security encryption so you have a give and take now, 3. the issue already described previous regarding the sleep method (this was originally intended for smoke detectors actually but any batter operated low power module works with the method. there can be a group of these devices with a master of the group that works with this sub group though to get around the direct connection limitation. no one has really put it into physical practice yet though).