Avatto SDL-S1-B90 90mm Smart Digital Lock Cylinder

Avatto SDL‑S1‑B90 digital lock cylinder (90 mm, black) supports fingerprint, IC card, Tuya app, and key access. Adjustable length fits most doors; installation completes in ten minutes with a hex screwdriver. Integrated Tuya module enables remote access control, user management, and unlock history monitoring.

Powered by a CR123A battery with low‑battery notifications. Durable, waterproof construction and 360° fingerprint recognition deliver reliable, long‑term security.