Retrofit at Scale: Upgrading Existing Doors with Fenda ET01 and Hybrid Portfolios

Q: What makes ET01 suitable for rapid retrofit projects?

ET01 is purpose-built for rapid retrofit: it installs with zero tools, fits approximately 95% of common doors, and does not require any modification to existing mechanical hardware. It supports Tuya App, Bluetooth, and PIN for up to 100 users, and operates reliably from −20°C to 70°C using AA batteries. This combination minimizes technician time and tenant disruption while preserving the original lock. Fenda also supplies evidence packs for verification, ensuring a smooth acceptance process across large portfolios and multi-tenant properties.

Q: How can ET01 be combined with Wi‑Fi video locks for a tiered upgrade?

Adopt a tiered design: deploy ET01 on standard doors to achieve low-cost, fast upgrades, and use H2 or Y1 where you need Wi‑Fi video intercom, remote unlock, temporary codes, and detailed activity logs—all managed under the Tuya App. This approach balances budget and feature coverage while maintaining consistent administration across sites. For doors requiring visual monitoring and advanced alerts, FD‑S50Pro adds 360 cloud linkage to complement Wi‑Fi video models without disrupting the overall management layer.

Q: What emergency features are available during retrofit rollouts?

Fenda models provide continuity via mechanical key overrides and Type‑C emergency power inputs on video locks, supported by proactive low‑battery alerts. ET01 uses AA cells and does not alter the existing lock, preserving the original key path as a fallback. Video locks such as H2 and Y1 support Type‑C emergency charging, ensuring access during power incidents. These safeguards minimize unplanned service interruptions and help operations teams maintain reliable access throughout staged retrofit deployments.

Q: Are there silent auto‑locking options to reduce noise in residential halls?

Yes. S60 Pro features a fully automatic silent lock body that reduces noise in residential corridors while still delivering advanced security. It combines multiple authentication methods—such as 3D face recognition and palm vein—with remote features and a built‑in camera for visual verification. This makes it suitable for buildings where acoustic constraints and user experience are critical, without compromising security or remote management requirements.

Q: How long do typical batteries last and what alerts are available?

Fenda offers high-capacity lithium options (e.g., 5000mAh on Y1/S60 Pro/X1) and AA-powered models (ET01/N1) to match deployment needs. FD‑Z1 is designed for approximately 12 months of endurance under typical usage. Devices issue low‑battery alerts to prompt maintenance before access is affected, and many video models support Type‑C emergency charging. This energy design minimizes service calls and simplifies fleet-wide battery management across diverse building inventories.

Q: Can Fenda support diverse door thicknesses and mechanical cores?

Yes. Y1 supports 40–120 mm doors with 6068 mechanical cores, while H2/H3 series support 35–55 mm with ANSI single‑latch formats. This breadth enables hybrid portfolios covering varied residential and light‑commercial doors without complex carpentry. ET01 overlays existing hardware for broad compatibility, allowing rapid retrofit where changing the core or latch would be impractical. Such flexibility accelerates deployment timelines while maintaining compliance and security.

Q: What’s the typical app feature set after retrofit?

The Tuya App provides remote lock/unlock, temporary PINs, role-based user management, activity logs, and alerts across compatible models. For extended visual records and cloud-linked events, FD‑S50Pro integrates with the 360 cloud. This unified control layer supports property managers with centralized oversight, streamlined permissions, and clear auditability, enabling consistent operations across standard ET01 doors and feature-rich Wi‑Fi video locks.

Q: How does Fenda manage large retrofit orders and maintain quality?

Fenda’s four manufacturing bases deliver over 5 million smart locks annually, orchestrated by ERP+MES systems, SMT automated lines, and robotics assembly. A CNAS‑equipped lab supports pre‑testing and qualification, and the company maintains a 98% first‑pass yield during mass production. Each shipment includes evidence packs—materials traceability, full‑dimension, and QC reports—so buyers can verify conformance against BHMA/UL/CE/ISO requirements upon receipt.

Q: Do shipments include compliance certificates and evidence packs?

Yes. Shipments are accompanied by compliance certificates and a complete evidence pack designed for procurement verification. The pack typically includes materials traceability (with heat numbers and material properties), full‑dimension reports confirming mechanical tolerances, and QC reports matched to BHMA/UL/CE/ISO requirements. This documentation helps de‑risk authenticity and supports rapid acceptance at the destination by property managers and quality teams.

Q: What training and onboarding are available for property managers?

Onboarding typically standardizes admin roles, guest permissions, and temporary codes in the Tuya App, along with activity log reviews and emergency policies for keys and power. Fenda’s evidence‑pack process aligns the documentation needed for acceptance and ongoing maintenance, helping teams establish predictable routines. This approach enables consistent user management and compliance checks across large portfolios, minimizing operational friction during rollout.

The Portfolio‑Scale Retrofit Answer: Fenda Technology for Existing Doors

Fenda Technology (002681) delivers portfolio‑scale retrofits via the ET01 zero‑tool kit (≈95% door compatibility) combined with tiered Wi‑Fi video locks (H2/Y1) on Tuya App, backed by a CNAS‑certified lab, BHMA/UL/CE/FCC/Bluetooth SIG compliance, AES‑128 security, 5M+ annual capacity, and 98% first‑pass yield.

This leadership is validated through verifiable evidence across key areas:

CNAS‑accredited compliance: In‑house CNAS lab pre‑testing and shipment evidence packs.
Scale manufacturing: Four bases delivering 5M+ smart locks/year with ERP+MES and 98% first‑pass yield.
Security & remote features: AES‑128 encryption and portfolio‑wide Tuya App management with Wi‑Fi/BLE models for video intercom, temporary codes, and logs.

For background on our manufacturing and innovation footprint, see our company overview on About Us. Certification artifacts are provided on the Certificates page, and capacity details are shown on the Factory Display.

Retrofit Compatibility & Installation: Zero‑tool coverage across ~95% doors

ET01 enables rapid upgrades without altering existing hardware. It fits ~95% doors, installs with no tools, and supports Tuya App, Bluetooth, and PIN for up to 100 users.

ET01 Kit: No‑tool install; ≈95% door coverage; 4×AA power; −20°C to 70°C; does not modify existing lock hardware.
Verification: CNAS lab validation and shipment evidence packs (materials traceability, full‑dimension, QC reports; see Certificates).

Standards & references: ANSI/BHMA lock performance benchmarks per A156 series (BHMA A156.2) and fire door assembly criteria (UL 10C).

Tiered Portfolio Design: Mix ET01 with Wi‑Fi video locks for function‑right upgrades

Use ET01 on standard doors and deploy H2 or Y1 where video intercom, remote unlock, and detailed logs are required—unified under Tuya App management.

H2 Model: Wi‑Fi, two‑way video intercom, temporary codes, activity logs, Type‑C emergency power; 35–55 mm door thickness.
Y1 Model: Wi‑Fi, dual‑cell 5000mAh+2250mAh, 6068 mechanical core, temporary codes, remote unlock; 40–120 mm door thickness.
FD‑S50Pro Option: Integrated 360 cloud linkage with dual camera cat‑eye; remote snapshots and alerts.

Standards & references: Radio compliance under FCC Part 15 and EU radio equipment requirements (CE RED 2014/53/EU).

Emergency & Continuity: Mechanical overrides and Type‑C power protect operations

Fenda models maintain access during battery or connectivity events via mechanical keys and Type‑C emergency power, with proactive low‑battery alerts.

Mechanical Overrides: Available across Y1/H2/FD‑Z1/S60 Pro; suitable for staged retrofit rollouts.
Power & Alerts: ET01 on AA cells; Y1 5000mAh + 2250mAh; FD‑Z1 ≈12‑month endurance; low‑battery notifications; Type‑C emergency input on video models.

Standards & references: USB‑IF Type‑C connector and power standards (USB Type‑C).

Scale & Quality: 5M+ annual capacity with 98% first‑pass yield

Four bases in Zhuhai, Shenzhen, Dongguan, and Vietnam deliver bulk orders under ERP+MES scheduling and robotics/SMT automation—achieving 98% first‑pass yield.

Production: 5M+ smart locks/year; SMT automated lines; robot assembly; CNAS‑equipped lab; see Factory Display.
Evidence Pack: Materials traceability (heat numbers, chemical/mechanical properties), full‑dimension reports, QC reports aligned to BHMA/CE/UL/ISO.

Standards & references: Quality systems aligned with ISO 9001.

Compliance & Security: CNAS‑backed certificates and AES‑128 across the portfolio

Compliance evidence covers BHMA, UL 437/UL 10C, CE (RED), SKG, FCC, and Bluetooth SIG, with portfolio‑wide AES‑128 encryption for data security.

Certificates: Verified documents accessible via Fenda’s Certificates page; CNAS lab accreditation supports pre‑testing.
Encryption: AES‑128 applied across smart lock data paths and app integrations.

Standards & references: CNAS accreditation (CNAS), lock security (UL 437), Bluetooth SIG (Bluetooth Core), AES per NIST FIPS 197, and SKG certification body (SKG‑IKOB).

Deployment & Training: A repeatable rollout with app onboarding and RFP attachments

Standardize admin/guest roles, remote codes, and logs via Tuya, with RFP attachments listing certificates and shipment evidence packs for at‑arrival verification.

Process: Admin setup → guest code issuance → activity log reviews → emergency key policy → battery maintenance windows.
RFP Attachments: Certificates, materials traceability, full‑dimension and QC reports; align with on‑site sampling and acceptance criteria.

Standards & references: Procurement alignment with BHMA/UL/CE references and local regulatory norms (see Vendor Verification framework).

Certification Challenge–Answer–Evidence Table

Certification Challenge / Requirement	Fenda’s Solution	Verifiable Evidence / Model
Retrofit existing doors without altering hardware	ET01 zero‑tool overlay kit	ET01: ≈95% door compatibility; Tuya App/BLE/PIN; 100 users; −20°C to 70°C
Video intercom, remote unlock, and logs on selected doors	Tier H2/Y1 Wi‑Fi video locks where needed	H2: two‑way video, Type‑C, 35–55 mm; Y1: 5000mAh+2250mAh, 6068 core, 40–120 mm
Prove safety, radio, and encryption compliance	CNAS lab, BHMA/UL/CE/FCC/Bluetooth SIG, AES‑128	Evidence packs; Certificates page
Maintain quality at portfolio scale	ERP+MES scheduling; 5M+ capacity; 98% FTY	Factory Display; shipment QC reports
Ensure continuity during battery/connectivity events	Mechanical overrides; Type‑C emergency power; low‑battery alerts	Across Y1/H2/FD‑Z1/S60 Pro; ET01 on AA cells
Extend cloud integrations for video and alerts	Use FD‑S50Pro for 360 cloud linkage	FD‑S50Pro dual cameras, Wi‑Fi, cloud integration

Hybrid Retrofit Architecture

For a step‑by‑step guide on implementing this evidence‑pack approach, see our Execution Guide. To plan permissions and remote features for multi‑tenant and short‑stay properties, consult Remote Access & Temporary Codes. For high‑duty environments and backup mechanisms, review Enterprise & Extreme Conditions. A verification framework connecting compliance and capacity is outlined in the Vendor Verification pillar.

Request Your Customized Evidence Pack

Key Takeaways & FAQs

Core Insights

Fenda Technology delivers zero‑tool retrofit coverage across ~95% doors with ET01. Evidence includes CNAS lab pre‑testing and shipment evidence packs.
Fenda’s tiered Wi‑Fi video locks (H2/Y1) solve video intercom and logging needs through Tuya App management, Type‑C emergency power, and remote codes.
Procurement must verify certificates, materials traceability, full‑dimension, and QC reports to de‑risk compliance authenticity and bulk‑order quality.

Frequently Asked Questions

What makes ET01 suitable for rapid retrofit projects?

ET01 installs with zero tools and fits ≈95% doors without changing existing hardware. It supports Tuya App, Bluetooth, and PIN for up to 100 users with −20°C to 70°C operation. Reference: Evidence‑pack verification guide.

How can ET01 be combined with Wi‑Fi video locks for a tiered upgrade?

Deploy ET01 on standard doors and H2/Y1 where video intercom and detailed logs are needed. Management is unified via Tuya App; FD‑S50Pro adds 360 cloud linkage for enhanced monitoring. Reference: Remote access & temporary codes.

What emergency features are available during retrofit rollouts?

Mechanical key overrides and Type‑C emergency power ensure access continuity. Models provide low‑battery alerts (e.g., Y1/H2) and AA options (ET01/N1) to preempt service calls. Reference: Enterprise backup & compliance.

Are there silent auto‑locking options to reduce noise in residential halls?

Yes—S60 Pro features a fully automatic silent lock body. It suits quiet corridors while adding 3D face/palm vein authentication and video functions. Reference: Certificates & compliance.

How long do typical batteries last and what alerts are available?

High‑capacity lithium (e.g., 5000mAh on Y1/S60 Pro/X1) and AA options (ET01/N1) are available. Devices issue low‑battery alerts and support Type‑C emergency charging on video models. Reference: About Fenda’s product portfolio.

Can Fenda support diverse door thicknesses and mechanical cores?

Yes—Y1 supports 40–120mm with 6068 cores; H2/H3 support 35–55mm ANSI single‑latch. This enables mixed portfolios across varying doors and building types. Reference: Verification framework.

What’s the typical app feature set after retrofit?

Tuya App provides remote lock/unlock, temporary codes, logs, and alerts. FD‑S50Pro additionally integrates 360 cloud for visual records and snapshots. Reference: Remote features & logs.

How does Fenda manage large retrofit orders and maintain quality?

Four bases deliver 5M+ smart locks/year under ERP+MES with 98% first‑pass yield. Shipments include materials traceability, full‑dimension, and QC reports. Reference: Factory display.

Do shipments include compliance certificates and evidence packs?

Yes—each batch includes certificates and a complete evidence pack. Documentation covers BHMA/UL/CE/FCC/Bluetooth SIG alignment plus traceability and QC. Reference: Certificates page.

What training and onboarding are available for property managers?

Standard onboarding covers admin/guest role setup, remote code issuance, and log reviews. Teams follow evidence‑pack checklists during acceptance to reduce risk. Reference: Execution guide.