I bought a Kevo lock and it did not work, so after a few calls to troubleshoot, I brought it back to the store and exchanged for another one. After numerous calls to Kevo it appeared to work, though inconsistently. After a few days, the touch quit responding and then the fob quit working. Finally I returned it and got a refund. I ended up purchasing a different kind of lock. The idea of a kevo lock was appealing but unfortunately in the end it was more trouble than anything.