A Kwikset Kevo lock senses when a resident's smartphone is near and then opens when the person touches what appears to be an ordinary deadbolt in a door.
"As long as you have your phone in our pocket, or in your purse, you touch the deadbolt and in about a second it will lock or unlock," said Phil Dumas, president of UniKey, whose technology was built into Kevo.
"It can even tell what side of the door you are on, so you can be on the inside and a bad guy can touch the door and it won't unlock."
