The ERA Digital Door Lock is designed for easy access control, suitable for a range of applications. The lock can be unlocked from the outside through correct input of the user code. The code can be easily changed. The Digital Door Lock automatically locks on the spring latch bolt. For added security, it has a vandal proof outer knob. On the inside the integral handle allows simple opening. The Digital Door Lock has a keyless operation - no keys to lose. The lock has over 5,500 code combinations, and can easily be set for right hand or left hand fitting. Weather Resistant. Holdback : Yes.