The LA-9 series combines solid brass styling with advanced technology to create a truly impressive locking system. Use a fingerprint, pin code or a mechanical key to unlock the LA-9. Easy to install and operate the LA-9 provides an excellent solution for your security needsSave and erase fingerprints directly on the lock, no need for PC support. Save upto 138 fingerprints. Stainless steel surface. Cast steel construction, no rivets or plastic components. Easily set the lock to stay open. Operates on 4xAA standard Alkaline batteries (no wiring required). Outside lever free to rotate in the locked mode. Easy keypad function controls. Epoxy erosion protection. Image capture time less than 1 second. Very low (less than 1%) false rejection rate.