About this item 🔒One Touch Fingerprint Access: Fingerprint unlocking, no longer worry about losing the key and forgetting the passcode The unique fingerprint algorithm logic is suitable for the elderly and children, suitable for families of multiple ages. 🔒300 User Codes: This keypad lock provides 300 access codes to meet the needs of home and business use. 🔒Durable and Power Saving: Zinc alloy and aluminum alloy material, 100,000 times laboratory unlocking durability test. Standard professional instruments test the temperature, "large temperature difference between hot and cold" still works, and "hot and cold" does not consume electricity. 🔒Multiple Functions Deadbolt：Code Protect - 4~10 code number length,enter random digits to confuse pying eyes.Silent mode - turn the sound on and off, visit mode - after this mode is turned on, it will not be locked and free to open the door. 🔒Service&Easy Installation: Service guaranteed-30-day money back, free replacement in 1 year and lifetime after-customer service from the date of purchase. Online phone calls service from Monday to Sunday 9 am to 6 pm PDT; 24/7 online after-sales email service. Fits US standard left and right doors,Women and men install it in minutes with just a screwdriver.