‎‎‎NUTOMO provide a 1-year warranty and free lifetime customer service. Any question such as installation please feel free to contact us at nutomocare@hotmail.com or (888)666-2755.

Smart Door Lock Set for Front Door, NUTOMO Keyless Fingerprint Entry Door Lock with Handle, Electronic Deadbolt Digital Keypad for Home Bedroom, Bluetooth APP Control Auto Lock IC Card Fob, Silver