BuyDig via Rakuten offers the Yale Locks B1L Push Button Z-Wave Door Security Bolt in Satin Nickel for $97.50. Coupon code "HOME20" cuts that to $78. With free shipping, that's tied with our mention from three weeks ago as the lowest price we've seen. (It's the best deal now by $77.) Buy Now Features Z-Wave system compatibility (SmartThings, Wink,, etc.) storage of up to 100 4- to 8-digit PIN codes backlit keypad motorized deadbolt 9V battery terminal for emergency charging Model: YRD110-ZW-619