What materials is the lock made of?

The shell is made of zinc alloy, which is collision-proof, waterproof, and rust-proof.

Can I manage users remotely?

Yes, the Tuya Smart APP allows you to add users, manage fingerprints, authorize access, and monitor battery status.

What are the dimensions of the lock?

The front and rear lock sizes are both 70mm*80mm, with a mounting hole diameter of 45-60mm.

Hot Sale Ttlock APP Electronic Door Lock Handle Smart Lock with Keypad

Name: Hot Sale Ttlock APP Electronic Door Lock Handle Smart Lock with Keypad
Brand: Fujian Chainfun Electronic Technology Co., Ltd.
SKU: 2000054455

Fujian, ChinaFujian Chainfun Electronic Technology Co., Ltd.

US$37.00

10-99 Pieces

US$35.00

100-499 Pieces

US$33.00

500-999 Pieces

US$29.00

1,000+ Pieces

Sample price:US$70.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Free Spart Parts

Warranty

12 Months

Model NO.

D68

Material

Aluminum Alloy

Type

Electronic

Style

European

Shape

Mortise Door Lock

Anti-theft Standard

Part

Lock

Backset

60mm

Door Thickness Fits

35-60mm

Lock Cylinder Length

Single Latch/5050

Transport Package

Standard Export Packing

Specification

240*60*21mm

Trademark

ChainFun

Origin

Fujian, China

HS Code

8301400000

Production Capacity

200000

Key features

4-in-1 Keyless Entry: Supports fingerprint, PIN code, backup key, and Bluetooth/APP unlocking for super convenience.

Smart APP Control: Tuya APP enables remote user management, authorization, and real-time battery monitoring.

Anti-Peep Password: Random digits before/after correct code create unlimited secure passwords to prevent peeking.

Easy DIY Installation: Fits 35-50mm doors using existing holes; takes minutes to install without extra drilling.

Long Battery Life: Powered by 4 AA batteries with low standby current, lasting up to one year.

Durable Construction: Zinc alloy shell is collision-proof, waterproof, and rust-proof for long-term durability.

Multiple Unlock Modes: Includes auto-relock, passage mode, temporary visitor mode, and combination unlocking.

Emergency Power Supply: Features a Type-C charging port for emergency power when batteries are depleted.

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: ≤6.17h 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.