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BLE Touch Screen Lever Handle Smart Electronic Digital Door Lock APP Lock
US$55.00
20-99 Pieces
US$49.00
100-1,999 Pieces
US$43.00
2,000+ Pieces
Sample price:US$70.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Free Spart Parts

Warranty

12 Months

Model NO.

D5

Material

Zinc Alloy

Type

Electronic

Style

European

Shape

Mortise Door Lock

Anti-theft Standard

A

Part

Lock

Backset

60mm

Door Thickness Fits

35-50mm

Usage

Household Door Locks

Transport Package

Standard Export Packing

Specification

30X14X20 cm

Trademark

ChainFun

Origin

Fujian, China

HS Code

8301400000

Production Capacity

200000

Key features

Triple Access Methods: Unlock via Bluetooth, PIN code, or conventional mechanical key for versatile access.
Slim & Rugged Design: Compact, sleek structure with a free-rotating handle to prevent forcible entry.
Easy Installation: American standard single latch allows easy replacement without wiring requirements.
Voice-Guided Operation: Intuitive voice instructions simplify programming and daily usage for users.
Backup Power Support: External terminals allow connection to a 9V battery for emergency power backup.
Adjustable Mortise: Features 60mm/70mm adjustable single latch with stainless steel and Euro mortise options.
Long Battery Life: Supports at least 5,000 locking/unlocking cycles with 4 AA alkaline batteries.
Quality Certification: Manufactured under ISO9001:2015 with CE, FCC, and ROHS certifications.

Company profile

Fujian Chainfun Electronic Technology Co., Ltd.
High Repeat Buyers ChoiceCustomization from SamplesR&D CapabilitiesDigital Management Enterprise
CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 6 Years CertifiedNearest Port: Xiamen PortAverage Response Time: ≤4.09h 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:What are the unlocking methods for this lock?
A:
The lock supports three access methods: Bluetooth connection, PIN code entry, and a conventional mechanical key.
Q:What is the warranty period for this product?
A:
We provide a 1-2 year warranty period for all our products, including free spare parts.
Q:How easy is the installation process?
A:
It is easy to install with an American standard single latch that allows for easy replacement and requires no wiring.
Q:What is the battery life and type?
A:
It uses 4 AA alkaline batteries and supports at least 5,000 locking and unlocking operations.
Q:Does the lock have a backup power option?
A:
Yes, it features external terminals to draw backup power from a 9V battery in case of low battery.

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