Kucacci Smart Door Lock, Keyless Entry Door Lock, Fingerprint Door Lock, Digital Product Details ?Sensitive Fingerprint Sensor?Your thumbs are the keys. KUCACCI security smart door lock fast read your fingerprint in just 0.1 seconds and unlocks your door in 1 second. Long press # on the keypad to lock the door manually. Keys are OUT! ?Double Security?Low battery voice alarm for batteries exchange reminder and there are 50 times maximum to unlock. When the battery is powered off, use the spare key or USB power bank for emergency charging to unlock. Never worry being locked out!!! ?Remote Access?Paired with extra KUCACCI Gateway (Sold Separately), you can lock/unlock the door anywhere anytime; share E-key/codes, change code and check real-time access logs remotely. Free your time! ?Easy Installation?With Kucacci keypad door lock, we can retrofit our old door knob easily in 5 mins, simple with a Philips screwdriver. No Extra Drilling Needed. No Locksmith Needed. Professional instructions and tutorial videos supported. ?Duarable Security?AES256 encryption protect privacy of fingerprint sensor and users data. IP66 weatherproof level, working temperature range of -20F ~ 122F, can withstand extreme weather and is suitable for outdoor use. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.