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We offer a one-year warranty and provide 1% spare parts. Additionally, we provide installation and after-sales service for our products.

2026 High Quality Low-Temperature Resistant Smart Digital Lock for Door

Name: 2026 High Quality Low-Temperature Resistant Smart Digital Lock for Door
Brand: Fujian Chainfun Electronic Technology Co., Ltd.
SKU: 1981765361

Fujian, ChinaFujian Chainfun Electronic Technology Co., Ltd.

US$34.50

30-99 Pieces

US$33.80

100-499 Pieces

US$31.50

500-999 Pieces

US$28.90

1,000+ Pieces

Sample price:US$50.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Free 2% Extra Wear-and-Tear Parts

Warranty

12 Months

Model NO.

A10

Material

Aluminum Alloy

Type

Electronic

Style

Modern

Shape

Mortise Door Lock

Anti-theft Standard

Part

Lock

Backset

60mm

Door Thickness Fits

Customized

Usage

Household Door Locks, Bedroom, Channel Lock

Mortise

6068/7068/6085/7085 etc.

Transport Package

Standard Export Packing

Specification

50X40X30 cm

Trademark

ChainFun

Origin

Fujian, China

HS Code

8301400000

Production Capacity

200000

Key features

Low-Temp Resistance: Operates reliably in temperatures ranging from -20 to 70 degrees Celsius.

Multi-User Management: Assign unique fingerprints or passwords to family, nannies, and tenants via app.

Patented Double-Bearing: Ensures smooth operation and precision with 100,000 cycles without sagging.

High Security Access: Supports fingerprint, password, key, card, Bluetooth, and app unlocking methods.

Smart App Control: Compatible with Tuya and TTlock apps for remote monitoring and temporary passwords.

Customizable Mortise: Supports various mortise sizes like 6068, 7068, 6085, and 7085 for global needs.

USB Backup Power: Features USB backup power to ensure access even if batteries are depleted.

Abnormal Alarm System: Alerts on violent lock picking, multiple failed attempts, and other security threats.

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: ≤4.05h 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:Are you a manufacturer?

Yes, we are a professional smart lock manufacturer with more than 7 years of experience in China. We have a 15,000 square meter factory with 4 assembly lines producing 5,000+ sets per day, 200+ team members including 32 R&D engineers, and hold ISO9001, CE, and FCC certifications.

Q:Can I get customization according to my own requirements?

Sure. We offer simple OEM customization including customized logos, packaging, colors, and finishings. We also provide deep ODM customization for appearance, functions, performance, software integration, and server deployment.

Q:How do you guarantee product quality?

Every lock undergoes 100% inspection before leaving the factory. We also conduct various performance tests including salt spray, constant temperature, durability, vibration, alcohol abrasion, single-arm drop, and infrared tests.

Q:What is your MOQ and delivery method?

Our MOQ is 1 set. We can ship smart locks to your country's port or directly to your door. Please provide your port name or address, and we will offer the most competitive price and freight.

Q:What is your delivery time?

The delivery time is 15-35 days after receiving your deposit.