For projects in Tehran, Iran requiring reliable home fire safety, Wanlin Fire Protection presents the 4G/NB-IoT VOC air quality sensor (WL-PB400). Backed by 12-year of manufacturing excellence, this solution addresses the critical need for real-time hazard detection in residential, hospitality, and institutional settings.
Core Specifications: 4G/NB-IoT wireless, 3s alert push via APP/SMS/Call to 5 contacts, 3-year battery, CE/FCC certified

Product Category: Voc Air Quality Sensor
Model Number: WL-PB400
Key Features:
Sensor Type: One-Press SOS Trigger
Communication: 4G/NB-IoT
Detection Range: Wearable range: up to 1000m
Accuracy: Instant trigger
Power Supply: 3-year
Alarm Output: APP/SMS/Call to 5 contacts
Alarm Sound Level: 90dB siren
Ingress Protection: IP65
Certifications: CE / FCC / RoHS / EN14604 / UL268 / ISO9001
Display: LED status indicator + LCD digital display
Supply Information: MOQ 100 sets | Lead time 20-25 working days | OEM/ODM customization available from 2000 sets
International buyers in Tehran face common challenges when sourcing home fire safety equipment:
False Alarm Fatigue: Cheap detectors trigger frequent nuisance alarms from cooking, steam, and dust — leading tenants to disable devices, creating life-threatening compliance failures.
Battery Replacement Burden: Consumer-grade detectors require annual battery replacement, creating maintenance gaps in rental properties and senior living facilities.
No Remote Monitoring: Standalone detectors without IoT connectivity cannot alert property owners or emergency services when occupants are away or unable to respond.
Supply Chain Inconsistency: Unreliable batch quality, missed delivery deadlines, and zero after-sales support plague overseas buyers sourcing from unknown Chinese trading companies.
High Western Brand Costs: Honeywell, Nest, and Kidde charge 2-3x factory-direct prices, squeezing margins for distributors and making large-scale projects unaffordable.
Wanlin Fire Protection's WL-PB400 directly addresses these pain points with factory-direct quality, complete certifications, and competitive pricing.
Recommended Installation Scenarios:
Child & Nursery Safety: Nursery temperature monitor, door sensors on cabinets, and window safety locks — comprehensive child-proofing with real-time smartphone alerts for parents and caregivers.
Multi-Family Residential: 4G/NB-IoT wireless connectivity enables whole-building safety monitoring without costly cabling — reducing installation cost by 70% compared to wired systems.
Certification Support: Wanlin provides the complete certification package, including CE/FCC/RoHS/EN14604/UL268 test reports, declarations of conformity, and factory audit documentation for Tehran customs clearance and local fire authority approval.
| Supplier Type | Advantages | Disadvantages |
|---|---|---|
| Wanlin Factory Direct | 12-year experience, CE/EN14604/UL268/FCC certified, MOQ 100 sets, OEM flexible, 3-week delivery, dedicated export team | Newer international brand recognition compared to century-old names |
| Local Tehran Distributor | Easy logistics, local language support | 30-50% markup, limited product range, slow certification updates |
| Unbranded Trading Company | Lowest quoted price | No quality control, fake certifications common, no after-sales, inconsistent batches |
| Western Brand (Honeywell/Nest/Kidde) | Strong brand reputation, established distribution | 2-3x price premium, 8-12 week lead time, OEM not available, minimum $50K orders |
Project: Senior Living Community Safety — Tehran
Scale: 6 residential buildings
Products Deployed: WL-PB400 (4G/NB-IoT Voc Air Quality Sensor) × 850 units + Cloud Platform Integration
Key Results:
Full community coverage achieved in 3 weeks
Emergency response time reduced from 8 minutes to under 90 seconds
Fall detection accuracy rate: 98.5%
Family satisfaction survey: 97% approval rating
System expanded to cover assisted living wing
"Wanlin's WL-PB400 exceeded our expectations. The certification package was complete, delivery was on schedule, and the product performance has been flawless." — Project Manager, Tehran
The global home fire safety market is projected to reach USD 8.2 billion by 2030, growing at a CAGR of 7.8%. Key drivers include:
Europe: Carbon monoxide alarm mandates expanding from UK to France, Germany, and Italy — 180 million homes affected
North America: Smart smoke detector adoption accelerating — 35% of new installations are IoT-connected by 2026
Middle East: Luxury residential and hotel development driving demand for integrated smart home safety systems
Asia Pacific: Smart city initiatives creating massive opportunity for connected home safety solutions
Latin America: Construction boom and insurance requirements fueling commercial and residential safety equipment demand
Africa: Urbanization and new building codes creating entry market for affordable, certified fire safety products
Wanlin Fire Protection is well-positioned to serve this growing global demand with certified, cost-effective 4G/NB-IoT home fire safety solutions.
Wanlin Fire Protection offers flexible partnership models for Tehran businesses:
Distributor Partnership: Exclusive or non-exclusive territory rights, competitive wholesale pricing, marketing support materials, and technical training
OEM/ODM Program: Custom branding (logo, model number, packaging), color customization, firmware/software adaptation, and private-label cloud platform
Project Supply: Large-quantity pricing, dedicated project manager, expedited production scheduling, and complete documentation packages for tender submission
Annual Framework Agreement: Volume-based tier pricing, priority production slots, quarterly technical reviews, and joint marketing support
Why Partner with Wanlin:
12-year of home fire safety manufacturing experience
Annual production capacity: 5+ million units
ISO 9001 certified quality system, 99.5% product yield rate
Dedicated international business team (English/Spanish/Arabic/French/Portuguese)
60+ countries served across 6 continents
A: The WL-PB400 is certified to CE (EMC/LVD/RED), EN14604 (smoke alarms), FCC Part 15, RoHS 2.0, and REACH. UL 268 and UL 2034 certifications are available for North American market variants. Full certification documentation packages are provided with every shipment.
A: Standard MOQ is 100 sets for stock products. OEM/ODM customization starts from 2000 sets. Standard lead time is 20-25 working days. Urgent orders can be expedited to 7 working days for premium service.
A: Yes. Wanlin provides 2-5 sample units for evaluation and local certification testing. Sample orders are processed within 3 working days, shipped via DHL/FedEx with tracking. Sample cost is refundable against bulk orders.
A: Yes. The WL-PB400 supports integration via Zigbee 3.0, Z-Wave Plus, MQTT, CoAP, and RESTful API. Our technical team provides integration documentation and support for compatibility with Alexa, Google Home, IFTTT, Samsung SmartThings, and major BMS platforms.
A: Standard warranty is 2 years from shipment date. We provide remote technical support (English/Spanish/Arabic/French/Portuguese), online training, spare parts availability, and annual maintenance training. Extended warranty and on-site support are available for large projects.
For product inquiries, price quotations, certification documentation, and partnership opportunities for VOC air quality sensor in Tehran:
International Business Email: wanlinfirecontrol@163.com
Export Service Hotline: +8613261677119
Website: www.wanlinfire.com
Shenzhen Headquarters: Building B, Beisida Medical Equipment Building, No.28 Nantong Avenue, Baolong Community, Baolong Street, Longgang District, Shenzhen, China
Beijing Office: City Sub-Center, Tongzhou District, Beijing, China
Markets Served: Southeast Asia, Middle East, Africa, Europe, Latin America, South Asia, Central Asia, Oceania — 60+ countries
2026-06-11 16:33:57