YALE REAL LIVING Electronic Keyless Deadbolt,Bright Bras YRD246NR605

I was very happy with this lock, especially because it does not have any key hole. No one can get in or pick the lock to open it without the code! If someone tries to brake it off - it has the siren that will start to sound! How cool! And if batteries are dead you can simply recharge it from outside attaching the 9V to it, but still need the code to get it open, so pick the master code that you will always remember. Also, it does have a low battery power warning light, so you do not have to wait until they totally dead. When I got the lock, I did not realized at first that I was installing the dead bolt upside down inside the door, so my new lock did not fit too well. After I took it out and placed the dead bolt correct side up, the rest of installation went easy.