Brand New Biometric Fingerprint Door Lock Adel 3398 Operating voltage: 6V (4 bits 1.5V alkaline batteries) - Static consumption:  8 UA - Dynamic consumption:  150 MA - Storage capacity: 120 (each 2 as a group, a total of 60 groups) Fingerprint collect Time: &lt;0.2 seconds - Fingerprint matching time: &lt;1 sec - False rejection rate (FRR): &lt;1  - False Accept Rate (FAR):  0.0001% Finger using angle: 360  at any angle can be correctly identified - Fingerprint template setting : 2 times generate a module - Battery life (standby): 2 years - Operation humidity: RH (45 ~ 85)% Highly recommended for Indoor use. - Individual user deletion. - Reversible handle fit any left or right handed door. - LCD for easy operation. No external wiring required.1x ADEL 3398 Biometric Fingerprint Door Lock 4x AA Betteries 2x mechanical key 1x User manual and installation instruction Fixing Screws and other accessories