How to choose a smart lock supplier

Start with door compatibility: wood, aluminum, steel, glass, and regional lock body standards (Euro mortise vs US deadbolt) matter more than brochure photography.

Ask for CE, FCC, and RoHS certificates that match the exact SKU — not a generic factory certificate.

Confirm the app stack (Tuya, TTLock, or both), offline unlock paths, and what happens if phones or networks fail.

Compare MOQ, sample policy, lead time, spare parts, and OEM scope before negotiating price.