SimpliciKey is an electronic deadbolt that can be operated with a remote control. The system includes an alpha-numeric wireless keypad that accommodates up to 16 user codes and an encrypted key fob with a range of up to 50 feet. The system runs on AA batteries, and the deadbolt also works with a traditional key. Cost: $149 to $249. SimpliciKey. 703-904-5010. www.simplicikey.com.