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Product Introduction: 908ZML fingerprint+password+graffiti Bluetooth version: 1. Unlocking methods: password, fingerprint, graffiti Bluetooth, mechanical key four unlocking methods; 2. Touch the password button; 3. Buzzer prompt; 4. Virtual password function; 5. Total number of password fingerprint groups: 60 groups (10 for administrators, 40 for regular users, and 10 for temporary users); 6. Front shell material: CNC carved profile aluminum, rear shell material: ABS. 7. Delayed automatic locking function, the locking time can be set by oneself. Normal mode selection, temporary password generation, only administrator fingerprint can unlock in vacation mode, silent mode selection. 8. Self check function, which corrects the left and right door opening direction through this function 9. Low battery alarm; When the door lock opens abnormally, the automatic error correction function is activated; 11. Four sections of No. 5 dry battery power. 12. Anti slip silicone pad configuration; 13. Lock cylinder: Two all copper keys 14. Lock tongue: 60/70mm adjustable locking lock tongue 15. Suitable door thickness: 35-50mm 16. Packing quantity: 18 sets/box; 17. Airplane box packaging, containing pearl cotton;                        1 18. Inner box size: 21.8CM * 15.7CM * 8.5CM 19. Outer box size: 49 * 45.5 * 28CM 20. Single set gross weight: 0.92Kgs, whole box gross weight: 17.39Kg