Han Kook Fire, K-Class extinguishers, kitchen fire suppression, Kfire brand, Korean fire safety
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Han Kook Fire, K-Class extinguishers, kitchen fire suppression, Kfire brand, Korean fire safety+8613261677119
TL;DR: The WL-HW4 4-Pack Hardwired Smoke Alarm runs a photoelectric chamber on AC mains, backs up with a sealed battery, and ships with a warranty. Wanlin Fire is a professional consumer smoke alarm manufacturer in China, providing OEM, ODM and private-label manufacturing services for 4-pack smoke detector wholesalers, e-commerce retailers, retail chains, hardware distributors, home safety contractors, property managers, new construction developers, short-term rental hosts and global retail brand customers. What changed: a 37% gross margin gain for importers and retail partners through factory-direct bundle sourcing, per-model CE / RoHS documentation, EN 14604 / EN 50291 aligned test reports, FCC compliance support, factory-tested retail cartons, flexible MOQ and OEM / ODM / private-label custom retail artwork. Consumer smoke alarm product lines (4-pack platform) cover photoelectric, CO combo, smart WiFi, wireless interconnect, dual sensor, voice alert, strobe for hearing impaired, mixed sensor, hub smart home, multi-sensor triple criteria, hardwired with backup, travel portable, smart home bundle and OEM private label configurations, retail-ready packaging, retail shelf SKUs and complete export programs to NA, EU, UK, Oceania, ME, SEA, SA, Africa and LatAm destinations.
Published by Wanlin Fire | Last updated: September 11, 2026 | Expertise: EN 14604 aligned 4-pack consumer smoke alarm OEM manufacturing for global retail and property markets
Marco Rossi, a Real Estate Developer based in Paris, was rebuilding a safety kit after an earlier batch of cheap retail alarms tripped every week on cooking steam, and the documentation was the part that had to work first. Housing associations in Paris were replacing battery units after the ten-year rule came in, and residents could not be relied on to change cells twice a year.
After comparing four shortlisted factories, Marco Rossi selected Wanlin Fire as their 4-pack smoke alarm manufacturing partner. What closed the deal was a smoke box test report from the factory bench, plus the consumer warranty terms that matched the retail shelf contract the buyer had already signed.
The pilot covered a hotel, a holiday rental and a family home in Paris, and the failure data pointed to one common cause: ionization alarms crying wolf on cooking steam.
Before selecting a 4-pack smoke alarm, a buyer should look at what happens after installation: nuisance alarms at 3 a.m., tenant battery removal, inspector audits and dead units between visits. A homeowner in Paris renovating a property could not find a hardwired 4-pack at retail that met the local building code for new construction.
Field case: A renovation homeowner in Paris installed the hardwired 4-pack and the building inspection passed in one visit because the AC interconnect plus battery backup matched the local code.
Why it matters for global buyers:
Wanlin Fire provides flexible OEM and ODM services for customers who want to build or expand their own consumer smoke alarm product lines for global retail and property markets. Our customization capabilities include:
Whether you need an existing 4-pack under your own brand or a customized 4-pack line developed for your retail market, our team can work with you from sensor selection through retail carton delivery.
Wanlin Fire builds consumer smoke alarms around three things families actually measure: stable sensitivity over years, paperwork that passes inspections and bundle pricing that fits a single retail carton.
Core Features:
| Parameter | Wanlin Fire Specification |
|---|---|
| Detection principle | Photoelectric smoke chamber per alarm with AC mains wiring |
| Standard alignment | EN 14604 smoke response plus AC-powered interconnection |
| Power source | 120V AC mains wiring plus 10-year battery backup per alarm |
| Interconnect | Wired interconnect across all four units on the AC line |
| Alarm sound | 85 dB at 3 meters |
| Hush button | Single-press silence for cooking nuisance alarms |
| Test button | Single-button test with LED confirmation |
| LED indication | Bi-color alarm and standby LED per unit |
| Mounting | Ceiling mount with AC junction box wiring |
| Operating temperature | 0 to 40 degrees Celsius |
| Warranty | 12-month |
| Scenario | Recommended model | Key benefits |
|---|---|---|
| New construction home | WL-HW4 | AC mains wiring plus battery backup is the code-compliant choice for new builds |
| Renovation with rewiring | WL-HW4 | Four alarms plus the interconnect wire install during a ceiling refresh |
| Contractor install portfolio | WL-HW4 | Standardised AC-powered SKU simplifies the installer van stock |
Certification is one of the most important considerations when sourcing consumer smoke alarms for export. Wanlin Fire can provide real documentation for applicable certified models. Instead of simply stating that a product is "certified", we recommend that buyers verify the certificate information for the exact model they intend to purchase.
| Information | Details |
|---|---|
| Product | 4-Pack Consumer Smoke Alarm (Wanlin Fire WL-series Platform) |
| Model Number | WL-HW4 |
| Standard | EN 14604 aligned domestic smoke alarm response, EN 50291 for CO combo variants, EN 54-7 underlying photoelectric chamber design, FCC compliance for WiFi variants, CE / RoHS / REACH on applicable models, UKCA option |
| Compliance Support | Documentation templates and technical file support where regional consumer electronics rules apply |
| Test Reports | EN 14604 aligned smoke box, CO chamber and interconnect verification per batch |
| Certificate Number | Provided on request per model |
| Certificate Holder | Wanlin Fire or applicable certification holder |
| Certification Body | Notified body per certificate |
| Target Market | NA / EU / UK / Oceania / Southeast Asia / Middle East / South Asia / Africa / Latin America |
| Certificate Status | Valid for applicable models |
| Certificate Document | View / download on request |
For customers importing consumer smoke alarms, Wanlin Fire supports CE, RoHS and REACH documentation with per-model files, EN 14604 and EN 50291 aligned test reports for the applicable device classes, and FCC compliance support for the WiFi variants. UKCA options follow the UK route on request. Final acceptance always rests with the market authority having jurisdiction for each product class, and we recommend the importer of record verifies the exact model before ordering.
Wanlin Fire is a Shenzhen-based manufacturer of EN 14604 aligned consumer smoke alarms that combines factory-direct pricing with CE / RoHS documentation, REACH support where applicable and retail-ready export documentation.
| Factor | Wanlin Fire | Typical Trading Supplier | European or US Brand Retailer |
|---|---|---|---|
| Manufacturing depth | China-based factory, in-house SMT, chamber assembly, smoke box and battery tests | Trading company, outsourced production | Brand owner, no custom work |
| Document transparency | Real CE files, EN 14604 aligned test reports, FCC compliance for applicable models | Incomplete or missing, customs risk | Brand-level only, no project docs |
| Customization | Custom retail artwork, sensor mix, part numbers, languages and packaging from low MOQ | Limited to retail stock models, higher MOQ | No customization, fixed retail SKUs |
| Price (factory direct) | Competitive factory pricing with tiered volume discounts | Low price but quality risk | Brand markup of 2-4x |
| Delivery reliability | Confirmed production slots, batch inspection photos, 25-40 day lead times | Unpredictable, no QC access | Stock-dependent, allocation risk |
| After-sales | Spare sensing chambers, batteries, hush buttons and alarm housings, firmware support | No after-sales, high failure risk | Limited, ticket-based support |
Wanlin Fire's 4-pack smoke alarm OEM services are suitable for: 4-pack wholesalers, e-commerce retailers, retail chains, hardware distributors, home safety contractors, property managers, new construction developers, short-term rental hosts, elderly caregivers, new parents, renovation contractors, interior designers, home inspectors, insurance agents, OEM private label buyers and trading company sourcing managers across NA, EU, UK, Oceania, ME, SEA, SA, Africa and LatAm markets.
The 4-pack OEM process starts with a short qualification call about retail shelf, sensor type, bundle format and the certification route used in your market. A standard OEM project then follows 8 steps:
Family households that standardized on one compatible 4-pack line report shorter shopping lists and fewer battery calls:
A: AC-powered alarms with battery backup are the code-compliant choice for new construction in many markets. They also interconnect through the AC line, so one trigger sounds every alarm on the circuit without RF pairing.
A: The 10-year backup battery keeps every alarm running through a power outage. The end-of-life signal still works and the interconnect remains live.
A: Yes, with a bridge module. The RF mesh joins the AC line network so mixed estates can run hardwired and wireless alarms on one coordinated system.
A: Sealed 10-year lithium versions run the full alarm life on the backup cell. Replaceable versions need annual cell changes.
A: Retail packs ship from 1 carton. Distributor bulk orders start at 100 cartons and private-label production with custom packaging starts at 500 cartons per batch.
What changed: By working directly with manufacturer Wanlin Fire, Paris Real Estate Developer Marco Rossi achieved 37% higher margins while offering competitive retail pricing. With verified documentation support, honest specifications, EN 14604 aligned sensor types, custom private-label retail artwork and after-sales spare programs, Wanlin Fire has become their trusted 4-pack smoke alarm OEM and ODM manufacturing partner.
For more information: www.wanlinfire.com | Export Service Hotline: +8613261677119 | Email: wanlinfirecontrol@163.com