Interior Smart Door Knob Lock for Wooden Door Bedroom

Name: Interior Smart Door Knob Lock for Wooden Door Bedroom
Brand: Fujian Chainfun Electronic Technology Co., Ltd.
SKU: 2136181365

Fujian, ChinaFujian Chainfun Electronic Technology Co., Ltd.

US$38.00

100-499 Pieces

US$36.00

500-999 Pieces

US$35.80

1,000+ Pieces

Sample price:US$50.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Free Spart Parts

Warranty

12 Months

Model NO.

Q21

Type

Electronic

Style

European

Shape

Mortise Door Lock

Anti-theft Standard

Part

Lock

Backset

60/70

Door Thickness Fits

35-50mm

Lock Cylinder Length

70mm

Usage

Household Door Locks, Bedroom

Waterproof

Indoor Smart Door Lock

Keyword

Smart Door Handle

Transport Package

Standard Export Packing

Specification

30X14X20 cm

Trademark

ChainFun

Origin

Fujian, China

HS Code

8301400000

Production Capacity

200000

Key features

Multi-Unlock Methods: Supports fingerprint, password, card, key, IC card, and APP control for versatile access.

High Capacity Storage: Stores up to 100 fingerprints and 150 passwords for large households or teams.

Adjustable Mortise: Features 60/70mm adjustable backset to fit various door thicknesses (35-50mm).

Durable Material: Constructed from high-quality zinc alloy for long-lasting performance and security.

Comprehensive Warranty: Includes 12-month warranty coverage with free spare parts for peace of mind.

ISO Certified Quality: Manufactured under ISO9001:2015 standards with CE, FCC, and ROHS certifications.

Flexible Customization: Offers full, minor, and flexible customization options based on designs or samples.

Low MOQ Requirement: Accepts minimum orders starting from just 1 piece for flexible purchasing.

Company profile

High Repeat Buyers ChoiceCustomization from SamplesR&D CapabilitiesDigital Management Enterprise

Fujian Chainfun Electronic Technology Co., Ltd.

Fujian, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 6 Years CertifiedNearest Port: Xiamen PortAverage Response Time: ≤5.36h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryFujian Chainfun Electronic Technology Co., Ltd. is a China-based limited trading company established in 2019 with nine employees. It reports professional technical R&D capability, customization from designs and samples, and annual smart door-lock productivity of 200,000 sets. However, it does not provide 3D software design, ODM, SDK, or popular-brand OEM services, and reported no new products in the past year. Export sales are stated at 90%, with six years of exporting experience, but another record states that no valid import/export license is held. Service-quality controls are weakly documented: complaint handling and corrective/preventive actions have no written procedures or records. The supplier has no overseas warehouses, showrooms, agents, branches, or offline trade-show experience. No certification, financial-strength, or customer-case evidence is provided.

After-Sales capabilityThe supplier has no overseas warehouse, showroom, agent, or branch, and has not participated in offline trade shows. Its complaint-handling and corrective/preventive-action mechanisms have no written procedures or records, although relevant service-capability records exist; this indicates a documented-service weakness.

R&D capabilityThe supplier is described as having professional technical R&D capability and offering multiple customization modes, but it reported no new products during the past year and does not provide ODM services, SDK availability, or 3D software design services. The evidence therefore shows technical capability but limited recent product-development breadth.

Production capacityAnnual productivity is stated as 200,000 smart door-lock sets, with peak- and off-season lead times both within 15 workdays. However, the company is classified as a trading company, and the slices do not establish whether this capacity is owned manufacturing capacity or supplied through partners.

Customization capabilityThe supplier explicitly offers full, minor, and flexible customization, including customization from customer designs and samples. This is consistent across the R&D and design-service records and demonstrates broad stated customization support.

Product Q&A

Q:Who are we?

We are based in Zhejiang, China, started in 2020, and sell to Domestic Market (90.00%), Southern Europe (4.00%), and Mid East (2.00%). There are total about 101-200 people in our office.

Q:How can you guarantee quality?

We always produce a pre-production sample before mass production and conduct a final inspection before shipment.

Q:What can you buy from us?

We offer Hotel Door Lock, Fingerprint Door Lock, Airbnb Lock, and Electromagnetic Door Lock.

Q:Why should you buy from us not from other suppliers?

Established in June 2020, 'Chainfun' is a leading manufacturer of electronic door locks from Zhejiang, China. The company owns more than 80 patents and passed ISO9001:2008 international quality system certification in 2005.

Q:What services can you provide?

We provide a 1-2 year warranty period for all our products.