‎NUTOMO provide a 1-year warranty and free lifetime customer service. Any question such as installation please feel free to contact us at nutomolocks@outlook.com or (888)988-2118.

Keyless Entry Keypad Door Lock with Handle – NUTOMO Fingerprint Electronic Door Lock – Front Digital Door Lock – with 300 Passcodes & Fingerprints Auto Lock Keyfobs – Smart Lock for Home Office Rental