?This Adel 3398 Fingerprint Lock with Standby Lock Homes/Operating and Installation Instructions supports self management£¬ quite convenient to use£¬ safe and reliable. And you can independently increase£¬ delete or wipe fingerprint according to the need when operating it. With batteries powered and the batteries have a long lifespan up to four to five years. When the battery voltage is low£¬ the lock sends out alarm and prompts you to replace battery. Besides£¬ the fingerprint lock adopts large-scale integrated energy-saving circuit with low voltage. With operation indicator light and sound prompt design£¬ during operation£¬ the lock will give instrcution each step to avoid error operation. Pressing any key can start background light blue light£¬ providing convenience for night operation.                                    Features            It adopts European standard lock core and a thin lock construction£¬ flexible use£¬ good scalabilityThe perfect combination of lock£¬ password and biotechnology can open the lock by a mechanical key£¬ emergency password or group members fingerprintThe fingerprint storage capacity is up to 120 piecesGroup management and delete fingerprint one by oneLock function: lock upward or rotate with front/rear handle can make the door lock with convenience and safetyNormally open function: directly rotate a front handle and open the door£¬ suitable for use in a specific situationSuitable for villas£¬ luxury apartments£¬ offices and other places                                                            Specifications            Model    3398-YY    <br>Working Voltage    DC 6V    <br>Battery    4 x 1.5 V Batteries    <br>Static State Power Consumed    &lt; 8uA    <br>Dynamic State Power Consumed    &lt;150mA    <br>Fingerprint Capacity    120 Pcs    <br>Fingerprint-gathering Time    &lt;0.2s    <br>Fingerprint Identification Time    &lt;1s    <br>FRR    ¡Ü0.1%    <br>FAR    ¡Ü0.0001%    <br>Rotational Angle    Total Rotational Angle(360 Degree)    <br>Sensor    30 Megapixel CMOS Color Sensor    <br>Lifetime of Battery    2 Years    <br>Resolution    500 DPI    <br>Color    Asian Chrome Color    <br>Material    Metal    <br>Dimensions    (5.9 x 2.75 x 1.18)" / (15.0 x 7.0 x 3.0) cm(L x W x H)    <br>Weight    106.03 oz / 3005.8 g    <br>Details<br>                                                            Package Includes            1 x Adel Silver 3398 Fingerprint Lock1 x Standby Lock Homes1 x Operating Instructions1 x Installation Instructions1 x Tool Box