The folks at Copper Creek have made cutting edge technology and peace of mind security convenient and easy to use and the DBZH3410TB is just that. Similar to a standard deadbolt, the DBZH3410TB can be locked or unlocked inside using the manual turn piece; From the outside you have the option of unlocking using the programed code or manual key. Each deadbolt allows you to program up to 6 individual programmable passcodes and the keypad illuminates when dark for ease of use at night. Made of durable zinc material, this electronic deadbolt offers quality that will hold up over years of use. Who says that great security cant have great looks too? The Tuscan bronze finish is a more refined take on the popular oil rubbed bronze finish and will add class and character to any door it is installed on. Add convenience to your home security and find out why Copper Creek is Designed For Life.