VEVOR Fingerprint Door Lock, with Fingerprint/Keypad Code/Key, One-Time and Anti-Peeking Password, Silent Mode, Constant Unlock Mode, Aluminum Alloy Panel, Electronic Keypad Deadbolt for Entry DoorsComprehensive SafeguardCustomized EntryEnhanced SecurityMulti-Mode SettingsEasy InstallationQuiet ModeAluminum Alloy Exterior Panel: 4.8 x 2.8 inch / 123 x 70 mm,Keypad Type: Mechanical,Operating Temperature Range: -22°F - 158°F / -30 - 70℃,Lock Bolt Material: Stainless Steel,Item Model Number: DS50Pro,Unlock Methods: Password/Key/Fingerprint,Aluminum Alloy Interior Panel: 5.4 x 2.8 inches / 136 x 70 mm,Fingerprint/Password Capacity: 100 Passwords/50 Fingerprints,Compatible Door Thickness: 1.4 - 2 inches / 35 - 50 mm,Latch Material: Zinc Alloy,Fingerprint Module: Resolution 508dpi,Net Weight: 1.7 lbs / 0.77 kg