iTouchless BM003R Bio-Matic Fingerprint Door Lock for $199.49. Shipping is $2.95 for a total of $202.44 shipped. Here is a screenshot for your reference. It is compatible with standard 2-1/8″ diameter hole and offers sliding front cover to protect optical sensor. In addition, this lock stores up to 150 fingerprints and 78 passcodes, including two back-up mechanical keys for emergency use. Most places have this fingerprint door lock for over $240.