Question 1

Do smart locks work without internet?

Accepted Answer

Yes. FANDAN smart locks open locally by fingerprint, PIN, card or key without any internet. Remote and time-limited passcodes use offline algorithms, so doors verify them even offline. WiFi/4G/gateway connectivity is only needed for remote management and log sync.

Question 2

How to choose smart locks for apartments and rentals?

Accepted Answer

Four hard criteria: 1) Ecosystem — choose a rental-grade platform like TTLock with timed passcodes, lease-synced access and entry logs; 2) Power — 12-month AA battery models are the most worry-free; 3) Environment — IP65 waterproof models (e.g. FANDAN B60/F21W) for outdoor doors; 4) Platform — for multiple units, pick a factory with management software (FANDAN Butler/PMS supports batch issuance and revocation). FANDAN ships the same hardware in TTLock/Tuya/BLUE LOCK/FANDAN versions so you can pilot a mix first.

Question 3

What is the difference between TTLock and Tuya?

Accepted Answer

TTLock is the de-facto standard for rentals: timed passcodes, offline capability, entry logs and tenant management — ideal for apartments, BnB and hotels. Tuya is a smart-home ecosystem whose strength is linking the lock with lights, cameras and voice assistants — ideal for whole-home automation. FANDAN manufactures both versions, plus its own BLUE LOCK platform with private deployment.

Question 4

How to choose a smart lock manufacturer in China?

Accepted Answer

Five checkpoints: 1) A real factory, not a trader — ask for production-line video and license (FANDAN makes 2M sets/year); 2) Certifications — CE/FCC/RoHS are mandatory for export; 3) Ecosystem coverage — can the same hardware ship in TTLock and Tuya versions; 4) Software — a maker with its own management platforms sustains after-sales; 5) Sample policy — FANDAN offers free samples to verified business customers (shipping collected), so you can test before ordering.

Question 5

How long do smart lock batteries last? What if they die?

Accepted Answer

FANDAN dry-battery models run about 12 months on 4 AA batteries, with voice alerts and app push warnings before they run out. If fully drained, you can still open the door with Type-C emergency power or the mechanical key. Project-grade models support 8 batteries for extended life.

Question 6

Which smart lock works outdoors or in humid climates?

Accepted Answer

Three must-haves: real waterproofing (immersion-tested or IP65 — the FANDAN B60 is deep-immersion tested), anti-corrosion materials (304 stainless F21W or aerospace-aluminum F18), and redundant access (wet fingers fail biometrics, so PIN + card + mechanical key backup is essential). Suitable for coastal, rainy and poolside areas.

Question 7

What does a hotel smart lock solution include?

Accepted Answer

The FANDAN hotel solution = FH01 RFID locks + E5 card encoder (master/floor/building/room cards issued in 3 seconds) + ES2 key-card energy saver (up to 30% less power) + management platform (contactless check-in, access audit logs, remote emergency unlock). PMS integration supported; a 30-room property migrates in one day.

Question 8

What is the OEM/ODM process for importing smart locks from China?

Accepted Answer

FANDAN five steps: free sample → requirement confirmation (OEM branding or ODM custom look/function/packaging) → contract and 25-35 day production → video QC → shipment. Dry-battery models ship unrestricted; we handle transport documents for lithium models. OEM has low MOQ; ODM offers full customization.

Question 9

How do I get a free FANDAN sample?

Accepted Answer

Click "Get Free Sample" on any FANDAN product page and submit your name, contact, purpose and destination. Verified business customers worldwide get free samples with fast review and a dedicated contact — shipping is freight-collect. After approval you receive a shipping-fee payment link; once paid, we ship and the parcel is auto-tracked on 17TRACK.

Question 10

What unlock methods do FANDAN smart locks support?

Accepted Answer

All models support five-in-one access: fingerprint, PIN, IC card, app and mechanical key. Mid/high-end models add 3D face, palm vein and video intercom. Project models support remote face/fingerprint issuance over 4G. Connectivity options: WiFi, 4G, gateway, NB-IoT, Sub-1G.

Question 11

What software platforms does FANDAN offer?

Accepted Answer

Six self-developed platforms: FANDAN Smart LDLOCK (home lock app), FANDAN Butler LDRENTING (rental management for apartments/BnB), BLUELOCK (lock management + open API), FANDAN PMS (all-in-one rental PMS, free cloud version + private deployment), FANDAN HOME (public housing management), FANDAN CARD ROOM (card-room/booking management, register and go).

Question 12

How is after-sales handled for overseas orders?

Accepted Answer

FANDAN exports to 28 countries with remote technical support in EN/ES/PT/RU/AR/TR (instant response on WhatsApp), a standing spare-parts inventory, OTA firmware upgrades and installation video guidance. Volume customers can sign annual spare-parts and replacement agreements.

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