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As of September 11, 2026, Wanlin Group (Shenzhen, China) officially launches its 2026 best 4-pack smoke detector product export program, featuring the WLF-FS310 Fireproof Document Safe with Digital Lock 30L as the flagship OEM / ODM model for buyers seeking a China-based source factory for residential and small-commercial consumer fire safety devices under the Wanlin brand (Wanlin Fire Detection Division). The new release targets importers, e-commerce resellers, retail chain buyers, brand owners, supermarket and big-box chains, real estate developers, social housing operators, hospitality groups, hospitality contractors, MEP consultants, system integrators, facility management companies, property developers, social housing associations, insurers, wholesale distributors, short-stay / Airbnb hosts and public procurement tender bidders who source consumer fire safety products directly from Chinese factories rather than paying the western brand premium of X-Sense, Kidde, First Alert, BRK, Google Nest Protect, Ring, Honeywell, Hochiki, Apollo, System Sensor, Edwards, Gent, Notifier, Siemens, Bosch, Panasonic, Nittan, FireAngel or GST. Wanlin Group as the 4-pack smoke detector and consumer fire safety product supplier, exporter and original manufacturer now opens its doors to global local partners, regional exclusive distributors and strategic OEM clients across the Czech Republic. Berlin Wedding district veterans' housing association fitted 85 dB(A) WLF-SD430 wireless interconnected 4-packs plus separate 100 dB strobe bases for 18 hearing-impaired tenants
Core parameters: WLF-FS310 Fireproof Document Safe with Digital Lock 30L, passive fire insulation via intumescent fire seal + ceramic fibre cavity + concrete composite walls, ul 72 class 350 1-hour internal temperature <177 deg c at 1,010 deg c external. Sensor element n/a (passive insulation); optional electronic digital lock with 4-8 digit pin and master key override, low-battery chirp. Alarm threshold n/a; digital lock 4 wrong pin lockout after 3 attempts, optional tilt / impact sensor with 100 db alarm. Power supply 4 x aa alkaline batteries for digital lock, mechanical key override, usb-c emergency power input. Battery life 12-month battery life under normal use, low-battery chirp 14 days advance, ac adapter optional. Interconnect protocol standalone digital lock; optional wifi / 4g iot module for remote unlock log and intrusion push notification. Coverage area 30l interior volume, fits a4 documents, passports, hard drives, jewelry boxes, a4 file folders, optional usb drive and sd card trays. Sound output optional tilt / impact alarm 100 db(a) at 1 m, low-battery chirp, optional wifi / 4g push notifications. IP rating ip67 waterproof submersible variant for flood-prone basement and outdoor shed. Operating temperature internal insulation rated to 1,010 deg c external for 90 minutes per ul 72 class 350 upgrade, -30 deg c to +80 deg c ambient. Humidity range 0-95% rh non-condensing, optional silica-gel desiccant canister included. Housing material stainless-steel 316l outer skin for marine / coastal installations. Dimensions and weight 420 mm w x 360 mm d x 350 mm h, 30l interior, 32 kg net weight, dual front + top opening hinges. Certifications UL 72 Class 350 90-minute upgrade / CE / RoHS / REACH / WEEE / ETL on request. Wanlin's 2026 export roadmap also covers 4-pack photoelectric smoke alarm with 10-year sealed battery, 4-pack smoke + CO combo detector, 4-pack wireless interconnected smoke alarm, 4-pack smart WiFi smoke detector with app, 4-pack home fire extinguisher ABC dry chemical 1 kg, fireproof document safe with digital lock 30L, smart home security 4-piece hub kit, with CE marking under CPR (EU 305/2011) and EN 14604 / EN 50291 / UL 217 / NFPA 72 documentation packages.
Executive summary - 10 buyer-relevant points:
- Flagship 4-pack product WLF-FS310 Fireproof Document Safe with Digital Lock 30L, passive fire insulation via intumescent fire seal + ceramic fibre cavity + concrete composite walls, ul 72 class 350 1-hour internal temperature <177 deg c at 1,010 deg c external
- Sensor element n/a (passive insulation); optional electronic digital lock with 4-8 digit pin and master key override, low-battery chirp
- Alarm threshold n/a; digital lock 4 wrong pin lockout after 3 attempts, optional tilt / impact sensor with 100 db alarm
- Power supply and battery life 4 x aa alkaline batteries for digital lock, mechanical key override, usb-c emergency power input / 12-month battery life under normal use, low-battery chirp 14 days advance, ac adapter optional
- Interconnect protocol standalone digital lock; optional wifi / 4g iot module for remote unlock log and intrusion push notification
- Coverage and sound output 30l interior volume, fits a4 documents, passports, hard drives, jewelry boxes, a4 file folders, optional usb drive and sd card trays / optional tilt / impact alarm 100 db(a) at 1 m, low-battery chirp, optional wifi / 4g push notifications
- 7 device families: 4-pack photoelectric smoke alarm, 4-pack smoke + CO combo, 4-pack wireless interconnected smoke alarm, 4-pack smart WiFi smoke detector, 4-pack home fire extinguisher, fireproof document safe, smart home security hub kit
- Factory pre-charged for sealed-battery variant, pre-paired for wireless interconnect variant, pre-flashed for smart WiFi variant, no customer-side commissioning required beyond mount and pull tab
- FOB Shenzhen reference price USD 89.5 per unit / per 4-pack / per kit at MOQ 100, lead time 25-35 days, warranty 36 months, OEM / ODM private label ready in 30-45 days
- Article focus: Berlin Wedding district veterans' housing association fitted 85 dB(A) WLF-SD430 wireless interconnected 4-packs plus separate 100 dB strobe bases for 18 hearing-impaired tenants
The 2026 global residential and small-commercial fire-safety product market continues to expand at a measured pace as building codes tighten, smoke alarm replacement cycles peak, and home security becomes intertwined with smart-home ecosystems. the Czech Republic buyers increasingly source 4-pack smoke alarm, dual-source smoke + CO combo, wireless interconnected smoke alarm, smart WiFi smoke detector, 4-pack home fire extinguisher, fireproof document safe and smart home security hub kit SKUs directly from China-based OEM / ODM factories rather than paying the western brand premium for X-Sense, Kidde, First Alert, BRK, Google Nest Protect, Ring, Honeywell, Hochiki, Apollo, System Sensor, Edwards, Gent, Notifier, Siemens, Bosch, Panasonic, Nittan, FireAngel and GST equivalents.
| Item | Detail |
|---|---|
| Product family | Flagship 4-pack SKUs in photoelectric, smoke + CO combo, wireless interconnect, smart WiFi variants plus fire extinguisher, fireproof safe and smart home security kit |
| FOB Shenzhen reference price | USD 36.50 (1 kg fire extinguisher 4-pack) up to USD 149.50 (smart home security 4-piece kit) |
| MOQ | 80 to 300 units / kits depending on product line, mixed container 4 SKU welcome |
| Lead time | 18-25 days sealed-battery / 20-28 days wireless interconnect / 22-30 days smart WiFi / 25-35 days safe and security kit |
| Warranty | 60 months sealed-battery smoke alarm family, 36 months extinguishers, safe and security kit |
| Compliance route | CE under CPR (EU) 305/2011, EN 14604 / EN 50291, UL 217 8th edition, UL 711, UL 72 Class 350, RCM, SAI Global, SIRIM, NOM-002-STPS, BIS IS 14604 |
| OEM / ODM private label | Logo, retail carton, manual, app skin, packaging design in 30-45 days; pre-flashed firmware for WiFi / HomeKit / Alexa variants |
| Channel destination | Big-box retail chains, e-commerce Amazon / Walmart / Target / Costco / Tesco / Carrefour / Auchan, hardware chains Home Depot / Leroy Merlin / B&Q, electrical wholesalers Rexel / Sonepar, insurance-approved installers, hospitality contractors, real estate developers |
The Wanlin 4-pack smoke detector product family WLF-FS310 Fireproof Document Safe with Digital Lock 30L is engineered around four core technology pillars:
detection_principle, sensor_element, alarm_threshold, power_supply, battery_life, interconnect_protocol, coverage_area, sound_output, ip_rating, operating_temp, humidity_range, housing_material, dimensions_weight, certifications, additional_features
| Spec key | Value |
|---|---|
| Detection Principle | Passive fire insulation via intumescent fire seal + ceramic fibre cavity + concrete composite walls, UL 72 Class 350 1-hour internal temperature <177 deg C at 1,010 deg C external |
| Sensor Element | N/A (passive insulation); optional electronic digital lock with 4-8 digit PIN and master key override, low-battery chirp |
| Alarm Threshold | N/A; digital lock 4 wrong PIN lockout after 3 attempts, optional tilt / impact sensor with 100 dB alarm |
| Power Supply | 4 x AA alkaline batteries for digital lock, mechanical key override, USB-C emergency power input |
| Battery Life | 12-month battery life under normal use, low-battery chirp 14 days advance, AC adapter optional |
| Interconnect Protocol | Standalone digital lock; optional WiFi / 4G IoT module for remote unlock log and intrusion push notification |
| Coverage Area | 30L interior volume, fits A4 documents, passports, hard drives, jewelry boxes, A4 file folders, optional USB drive and SD card trays |
| Sound Output | Optional tilt / impact alarm 100 dB(A) at 1 m, low-battery chirp, optional WiFi / 4G push notifications |
| Ip Rating | IP67 waterproof submersible variant for flood-prone basement and outdoor shed |
| Operating Temp | Internal insulation rated to 1,010 deg C external for 90 minutes per UL 72 Class 350 upgrade, -30 deg C to +80 deg C ambient |
| Humidity Range | 0-95% RH non-condensing, optional silica-gel desiccant canister included |
| Housing Material | Stainless-steel 316L outer skin for marine / coastal installations |
| Dimensions Weight | 420 mm W x 360 mm D x 350 mm H, 30L interior, 32 kg net weight, dual front + top opening hinges |
| Certifications | UL 72 Class 350 90-minute upgrade / CE / RoHS / REACH / WEEE / ETL on request |
| Additional Features | 30L interior, digital lock with 4-8 digit PIN, mechanical key override, USB-C emergency input, optional WiFi / 4G IoT module, 4 x 18 mm locking bolts, anti-pry hinges, mounting hardware and fire rating certificate included |
The featured 4-pack smoke detector product for this article is the WLF-FS310 Fireproof Document Safe with Digital Lock 30L, carrying UL 72 Class 350 1-hour fireproof document safe with electronic digital lock, 30L interior for passports, birth certificates, jewelry, hard drives and valuables. The product ships as a retail carton containing 4 individual units plus mounting hardware and multilingual manual, with factory pre-pairing on the wireless interconnect variant and a factory-sealed 10-year lithium cell on the flagship sealed-battery variant. ul 72 class 350 1-hour fireproof document safe with digital lock.
| Specification | Value |
|---|---|
| Product family | WLF-4xxx consumer fire safety 4-pack series |
| Flagship SKU | WLF-FS310 Fireproof Document Safe with Digital Lock 30L |
| Variant in this article | Industrial Wide-Temp + Outdoor IP65 Kit |
| FOB Shenzhen reference price | USD 89.5 per 4-pack / per unit / per kit |
| MOQ | 100 units / kits |
| Lead time | 25-35 days |
| Warranty | 36 months |
| Economic pack-out | 800 units per 20GP / 40HQ container |
| Region primary | Czech |
The 2026 best 4-pack smoke detector program from Wanlin Group has been deployed across a wide range of residential, hospitality, short-stay, multi-storey housing, seniors housing, retrofit conversion, kitchen-fire-risk and seismic-prone scenarios. Two representative deployments follow:
Scenario A. Berlin Wedding district veterans' housing association fitted 85 dB(A) WLF-SD430 wireless interconnected 4-packs plus separate 100 dB strobe bases for 18 hearing-impaired tenants, all 4-packs pre-paired at the factory so install time averaged 9 minutes per unit, the wireless mesh covered 6-storey walk-ups without repeaters, the Wohnungsbaugenossenschaft extended the framework agreement for a further 240 units.
Scenario B. Lagos Lekki-Epe self-build residential developer deployed 96 WLF-SD410 4-packs across 24 newly-built 4-bedroom terraces in the Phase 4 estate, the 10-year sealed lithium cell eliminated the previous monthly battery-replace burden that 38 percent of homeowners had been skipping, the estate homeowners' association adopted the variant as the standard spec for all Phase 5 onwards builds, the SONCAP certificate cleared customs in 8 working days.
Wanlin Group operates as China-based OEM / ODM source factory for the 2026 best 4-pack smoke detector product export program. The competitive advantages against X-Sense, Kidde, First Alert, BRK, Google Nest Protect, Ring, Honeywell, Hochiki, Apollo, System Sensor, Edwards, Gent, Notifier, Siemens, Bosch, Panasonic, Nittan, FireAngel and GST brand competitors include:
Every Wanlin 4-pack smoke detector product ships with a multi-region compliance pack. UL 72 Class 350 90-minute upgrade / CE / RoHS / REACH / WEEE / ETL on request buyers receive the following bundle:
The Wanlin 4-pack smoke detector export economics for the WLF-FS310 Fireproof Document Safe with Digital Lock 30L are structured as follows for distributor and installer partners:
| Cost stack | Detail |
|---|---|
| Per 4-pack / per kit | USD 89.5 |
| MOQ | 100 units / kits |
| Mixed 4 SKU container (20GP) | 3200 units total ~ USD 286400 reference |
| Mixed 4 SKU container (40HQ) | 6400 units total ~ USD 572800 reference |
| Trade terms | FOB Shenzhen / CFR / CIF / EXW / DDP available |
| Payment terms | 30 percent TT advance + 70 percent TT against B/L copy, LC at sight for established partners |
| Lead time | 25-35 days |
| Warranty | 36 months |
| Sample policy | Free sample unit or 4-pack for documented buyer with courier cost on buyer side |
| OEM / ODM setup | 30-45 days for retail carton artwork + 60 days for first production run |
| After-sales | RMA policy with documented field failure replacement within 14 days |
| Margin | Distributor wholesale margin 25-35 percent, retail margin 40-55 percent, installer margin 35-50 percent |
The Wanlin Group 2026 best 4-pack smoke detector program revolves around WLF-SD410, a photoelectric EN 14604 smoke alarm 4-pack with 10-year sealed lithium cell, retail box of 4 units with mounting hardware and multilingual manual. Compared with X-Sense, Kidde, First Alert, BRK, Google Nest Protect, Ring and Honeywell equivalents, the Wanlin 4-pack is priced at FOB Shenzhen reference price $42.50 per 4-pack at MOQ 200, with 60-month warranty and a 6-month document review.
The Wanlin WLF-SD410 4-pack carries CE marking under CPR (EU) 305/2011, EN 14604:2005 + AC:2008 third-party test certificate, RoHS / REACH / WEEE compliance pack and BSI review on request. The 10-year factory-sealed lithium cell eliminates annual battery replacement and matches EN 14604 end-of-life chirp requirement. Compared with X-Sense, Kidde, First Alert, BRK, Honeywell and Siemens equivalents, Wanlin offers shorter 18-25 day lead time at MOQ 200 and full multilingual EN / DE / FR / ES / IT retail carton.
The Wanlin WLF-SD420 4-pack combines EN 14604 photoelectric smoke detection with EN 50291-1 electrochemical carbon monoxide detection in a single head, dual voice prompt announces smoke versus CO events distinctly. Compared with X-Sense, Kidde, First Alert, BRK, Honeywell and Hochiki equivalents, the Wanlin combo is $58.50 per 4-pack at MOQ 200, with 10-year sealed lithium cell, LCD ppm display and 60-month warranty. The dual-source single-head design reduces install time per room by approximately 50 percent versus separate smoke and CO units.
The Wanlin WLF-SD430 4-pack features built-in RF 868 MHz mesh interconnect up to 24 devices with 200 m open-air range, factory pre-paired at shipping so install time averages 9 minutes per unit. Compared with X-Sense, Kidde, First Alert, BRK, Google Nest Protect, Honeywell and Siemens wireless equivalents, the Wanlin 4-pack is $74.50 at MOQ 150, with 60-month warranty and RED (2014/53/EU) certification. The mesh covers a 6-storey walk-up without repeaters.
The Wanlin WLF-SD440 4-pack features built-in WiFi 2.4 GHz IEEE 802.11 b/g/n with Tuya / Smart Life / HomeKit / Alexa / Google Home push, in-app silence and test, multi-device grouping, event log and OTA firmware update. Compared with Google Nest Protect, X-Sense, Kidde, First Alert, BRK, Ring and Honeywell smart equivalents, the Wanlin 4-pack is $89.50 at MOQ 150, with 36-month warranty and RED / FCC Part 15 / IC RSS-Gen certification. App push alarm latency is typically under 4 seconds on standard broadband.
The Wanlin WLF-FE210 4-pack contains four 1 kg ABC 75 percent MAP dry chemical powder portable extinguishers rated for Class A / B / C / Electrical fires per EN 3-7 and UL 711, with pressure gauge, wall-mount brackets and multilingual safety manual. Compared with Kidde, BRK, First Alert, Amerex, Buckeye and Badger equivalents, the Wanlin 4-pack is FOB Shenzhen $36.50 at MOQ 300, with 36-month warranty and 12-year service life before hydrostatic re-test.
The Wanlin WLF-FS310 features UL 72 Class 350 1-hour fire rating with internal temperature below 177 deg C at 1,010 deg C external for 60 minutes, electronic digital lock with 4-8 digit PIN plus mechanical key override and USB-C emergency input. Compared with SentrySafe, Honeywell, First Alert, Yale, Chubbsafes and Master Lock equivalents, the Wanlin fireproof safe is FOB Shenzhen $89.50 at MOQ 100, with 36-month warranty, 30L interior volume, 4 x 18 mm locking bolts and optional WiFi / 4G intrusion push.
The Wanlin WLF-SS510 4-piece kit contains a WiFi / Zigbee alarm hub + door / window sensor + PIR motion sensor + indoor 100 dB siren, with Tuya / Smart Life / HomeKit / Alexa / Google Home push, multi-user PIN, event log 1,000 entries and OTA firmware update. Compared with Ring, SimpliSafe, Abode, Nest Secure, Honeywell and Bosch smart home equivalents, the Wanlin kit is FOB Shenzhen $149.50 at MOQ 80, with 36-month warranty and optional 4G LTE Cat-1 backup for offline push.
Wanlin Group's 2026 best 4-pack smoke detector program has produced measurable outcomes across a growing list of global partner stories:
Bangkok partner story. A leading electrical wholesaler in Bangkok procured 1200 of WLF-SD410 4-packs and 240 of WLF-SD420 smoke + CO combo 4-packs in Q1 2026, the multi-pack retail SKU outperformed the single-pack equivalent by 3.2x attach rate per household, the wholesaler doubled the framework commitment for Q3 2026 on the back of zero documented field failures.
Mexico City partner story. A short-stay / Airbnb property manager in Mexico City deployed WLF-SD440 smart WiFi 4-packs across 18 serviced apartments, the Tuya / Smart Life app push delivered alarm events within 4 seconds, the property manager cut false alarm noise complaint tickets by 72 percent versus the prior ionization alarms, and the host's liability insurance premium dropped 6 percent after the documented install.
Wanlin Group welcomes four partnership models for the Czech market:
| Tier | Scope |
|---|---|
| Tier 1 - Regional Exclusive Distributor | Exclusive country rights, 12-month minimum purchase commitment, protected margin, co-branded marketing budget, factory-direct engineering support, regional spare parts depot, on-site training programme |
| Tier 2 - Cross-Border Trader / E-Commerce Reseller | Multi-country non-exclusive rights, FOB Shenzhen direct purchase, mixed container 4 SKU welcome, Amazon FBA prep, eBay / Etsy / Walmart marketplace setup, retail carton private label ready |
| Tier 3 - OEM / ODM Private Label Brand Owner | Hardware logo on housing, retail carton artwork, multilingual manual, app skin, packaging design copyright transfer, pre-flashed HomeKit / Alexa / Google Home certificates, 30-45 days setup |
| Tier 4 - Hospitality / Property / Insurance Framework | Multi-property roll-out programme, hospitality contractor submittal pack, social housing association framework agreement template, insurance premium reduction documentation, public procurement tender bidder package |
Wanlin Group also runs anti-cross-selling clauses for OEM / ODM clients, protected margin policy for regional exclusive distributors, and a regional spare-parts depot programme for hospitality / property framework partners. For direct contact, the export service hotline is +8613261677119 (English / Mandarin / Spanish / Arabic / French), the email is wanlinfirecontrol@163.com and the website is www.wanlinfire.com.
Wanlin Group's 2026 best 4-pack smoke detector product export program delivers a complete consumer fire safety portfolio from the WLF-FS310 Fireproof Document Safe with Digital Lock 30L flagship down to fire extinguisher, fireproof safe and smart home security kit add-on SKUs, all backed by CE / EN 14604 / EN 50291 / UL 217 / UL 711 / UL 72 Class 350 / RCM / SAI Global / SIRIM / NOM-002-STPS / BIS IS 14604 compliance packs, OEM / ODM private label setup in 30-45 days, and a four-tier partnership model for Czech buyers.
For sample requests, OEM / ODM quotation, mixed container 4 SKU planning, regional exclusive distributor framework agreements, hospitality contractor submittal packs, social housing association framework agreement templates, public procurement tender bidder packages, or retail chain private label artwork, contact Wanlin Group at wanlinfirecontrol@163.com, +8613261677119, or www.wanlinfire.com.
Published by: Wanlin Manufacturing Group, MistAirHome Export Division
Published on: September 11, 2026
Data sources: in-house factory testing + 4-pack smoke alarm and consumer fire safety product specifications + certification files + partner case studies
Company address: Wanlin Group, Building B, Building 1, Beisida Medical Device Building, 28 Nantong Avenue, Baolong Community, Baolong Sub-district, Longgang District, Shenzhen, Guangdong, China
References: factory quality manual + third-party test reports + customer shipment records
Contact: wanlinfirecontrol@163.com / +8613261677119 / www.wanlinfire.com