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The Signstek 81F is a smart door knob that opens by fingerprint, keypad code or physical key. It stores up to 50 fingerprints and 20 user codes, so a household, rental or small office can give each person their own entry. It fits standard doors 1.37 to 2.17 inches thick with a 2-3/8 or 2-3/4 inch backset and a 2-1/8 inch bore hole, and installs in about 15 minutes with a screwdriver. Compared with full smart deadbolts, it is simpler and needs no hub or app, but it offers no remote access or Wi-Fi control.
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The Signstek 81F is a smart door knob that unlocks by fingerprint, keypad code or physical key. It stores up to 50 fingerprints and 20 user codes, and users can be added or removed at any time.
Codes are 4 to 8 digits. For anti-peeping protection, you can enter random digits before and after the correct code, up to 40 digits in one entry, and the lock still recognizes the code within the sequence. The keypad locks for 1 minute after 5 consecutive incorrect code attempts. Silent Mode turns off all keypad beeps, and a low-battery alert signals when the 9V battery needs replacing.
The auto-lock timer can be set from 2 to 99 seconds, with a 5-second default. Passage Mode, activated with the two upper buttons on the interior assembly, lets you open the door by turning the exterior knob. With Vacation Mode on, only the Programming Code or the physical key opens the door. The cylinder is rekeyable to a new KW1 key, but rekeying requires a professional locksmith and specialized tools. It installs with a screwdriver in about 15 minutes.
