Lockmasters' new Lock - Duo electronic deadbolt comes with a built-in manipulation resistant 3-wheel mechanical combination lock override. This makes it a “lock-out proof" safe lock, allowing a standard mechanical combination to be dialed in the rare instance that the electronics fail or are otherwise not communicating electronically.
The lock body has a standard mechanical lock footprint and can be mounted in all four directions as required. Mounting the lock is quick and easy and requires no spline key. It’s used with a square shaft as the spindle. With its unique design, there is no need to remove the back cover for installation. Installation, operating instructions, change key, and all mounting hardware are included with package. Part number LKMDUO.
More Info: www.lockmasters.com