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TL;DR: Wanlin Adds the WANLIN-868D Panel With a Built-In LoRaWAN Gateway for Estates Around Chittagong

Wanlin adds wanlin-868d panel with built-in lorawan gateway for campus and industrial estates for Chittagong and Bangladesh fire protection contractors, system integrators, electrical wholesalers, distributors and importers. The WANLIN fire detection line spans WANLIN-780 Wireless Level Meter (LoRa / 4G / 433) and fourteen sibling configurations covering photoelectric and ionization smoke detectors, A1R / A2S heat detectors, resettable and weatherproof manual call points, EN 54-3 and EN 54-23 sounder strobes, the WANLIN-860 addressable fire alarm control panel from 2 to 16 loops, WANLIN-770 pressure transmitters and gauges, ultrasonic and radar level sensors, the WANLIN-705 smart power monitoring device with residual current and arc fault detection, catalytic, infrared and electrochemical gas and CO detectors, and the A119-YW detector tester with HFC-free test aerosol. Every carton ships with CE, RoHS, REACH and FCC documentation, EN 54 certificates, NIST-traceable calibration records and BS 5839-1 / NFPA 72 reference packs — bench-verified on the Chittagong QC floor before shipment. OEM/ODM with private label and custom branding, factory-direct export supply for Southeast Asia, South Asia, Central Asia, the Middle East, Africa, Latin America and the Pacific.

Featured equipment this report: WANLIN-780 Wireless Level Meter (LoRa / 4G / 433) — 4G Cat-1 level configuration — 4G Cat-1 uplink for remote reservoirs and agricultural or municipal tanks reporting level direct to the cloud dashboard; sensing and method Ultrasonic or radar level measurement to 12 m with hydrostatic probe option for deep tanks, 0.5 percent FS accuracy, temperature compensation; output and signalling 4-20 mA or digital telemetry output, high and low level alarm thresholds with local LED indication; connectivity LoRaWAN, 4G Cat-1 or 433 MHz uplink with 4-20 mA or RS-485 Modbus RTU at the device; mounting Tank-top flange or bracket mounting, G1/2 or NPT 1/2 process connection, M12 or cable-out connector; ingress protection IP67 sensor head and IP68 probe variants, operating -20 to +80 C process, -30 to +85 C ambient; enclosure PVDF or 316 stainless steel sensor body, aluminium or ABS transmitter housing, UV-stable; indication Optional 4-digit LCD with bar graph, LED alarm indication, cloud readout in volume or percentage; extra features Blind-zone and false-echo suppression, tank shape calibration, empty and full span teaching on site, threshold alerting to the cloud; warranty and after-sales 2-year limited warranty, calibration certificate per batch, 30-day DOA replacement; in the box Level sensor or probe, mounting bracket or flange, connector, calibration certificate, multi-language manual EN/ES/DE. Full specification table below.

Published by Wanlin Manufacturing Group (Wanlin Brand) | Last updated: September 17, 2026 | Expertise: 15+ years fire detection, alarm and instrumentation manufacturing and export

Dispatch note for Chittagong: Bangladesh-bound cartons leave Shenzhen via Chittagong (Chattogram) for the national gateway, with Mongla for the south-west and bonded trucking into Dhaka, Khulna and Sylhet. Detectors, panel cabinets, instrumentation and country-specific documentation are consolidated at the factory before sailing; typical door-to-door lead time for Bangladesh runs 28-35 days after the batch clears pre-shipment inspection — the window most contractors use to land the rough-in and the trim-out inside the same inspection cycle.

About Wanlin: Chinese Fire Protection Products Manufacturer and Export Supplier

Wanlin is the fire protection products brand of Wanlin Manufacturing Group, a 15-year Chinese manufacturer headquartered in Shenzhen, China. The brand builds the detection, control, signalling and instrumentation layer of a fire system — the devices that go on the ceiling, on the wall, in the riser and inside the distribution board — for fire protection contractors, system integrators, electrical wholesalers, facility management groups, civil defence contractors and their distributors across Southeast Asia, South Asia, Central Asia, the Middle East, Africa, Latin America and the Pacific.

Wanlin operates a genuine source factory with in-house injection molding, SMT PCB assembly, detector chamber calibration tunnels, panel burn-in racks, pressure and level calibration benches, gas cell ageing banks and an environmental chamber set for battery and temperature verification. Our factory builds the full WANLIN fire detection line — all configurations supported by CE marking under the Construction Products Regulation with EN 54 certification, UKCA for Great Britain, RoHS and REACH files, FCC Part 15 and the UL project path for North America, SASO conformity assessment and SABER PCoC / SCoC support for Saudi Arabia, G-Mark for the GCC, RCM for Australia and New Zealand, and EAC, CCCF, TISI, SNI, SIRIM, PS Mark, BFP and BIS support for the markets that require national approval, ISO 9001 and ISO 14001 quality systems, NIST-traceable calibration records, custom colour and logo programs, private-label packaging, multi-language manuals (English / Arabic / Russian / Spanish / French / Portuguese / Indonesian / Urdu / Hindi / Vietnamese / Thai), and spares and consumables programs sized to each partner's annual project volume.

WANLIN-780 Technical Specifications

Supply terms: Factory-direct pricing | OEM/ODM and private label | Cartons packed per project phase | CE, RoHS, REACH, FCC and EN 54 documentation, NIST-traceable calibration records and BS 5839-1 / NFPA 72 reference packs with every order | Custom colours, logo printing and carton branding | Spares and consumables programs sized to your annual volume | Sea freight via Chittagong (Chattogram) for the national gateway, with Mongla for the south-west and bonded trucking into Dhaka, Khulna and Sylhet, plus air options for urgent project top-ups | Warranty and after-sales spare parts program.

Inside the 2026 Fire Product Compliance Stack: EN 54, EN 14604, NFPA 72 and the National Approvals Along the Corridors

A fire product is only as sellable as the certificate behind it. Every Wanlin line is built to the standards the world's approval bodies actually enforce: EN 54-7 for smoke detectors, EN 54-5 for heat detectors, EN 54-11 for manual call points, EN 54-3 and EN 54-23 for sounders and visual alarm devices, EN 54-25 for radio-linked components, EN 54-2 / EN 54-4 for control and indicating equipment, EN 14604 for residential smoke alarms, EN 50291 for CO alarms and EN 50194 for gas detectors; NFPA 72 with the UL project path in the Americas; BS 5839-1 as the design reference on British-specified work; and the national approvals that clear the goods at the port. The Chittagong-bound cartons carry the certificate set, the declaration of conformity and the manual in the language the inspector reads. Below is how each layer of the stack maps to the WANLIN line.

Featured profile this report — Photoelectric Smoke Detection Profile: a dual-optical photoelectric smoke detector with drift compensation, insect-screened chamber, EN 54-7 and EN 14604 response band, 85 dB(A) onboard sounder and optional addressable or wireless RF interconnect, designed for residential, hotel, office and healthcare portfolios. Our WANLIN-303 photoelectric detector is the line distributors open with: one head covers EN 54-7 for commercial panels and EN 14604 for residential stock, the chamber comes out for cleaning instead of the whole unit going to landfill, and the factory-direct price lets a distributor hold a full pallet instead of a half carton. Every carton ships with multi-language manuals (EN / AR / RU / ES / FR / PT / ID / UR / HI / VI / TH), the EN 54 certificate set and country-specific documentation folders ready for Bangladesh customs clearance.

Inside the WANLIN Communication Stack: LoRaWAN, NB-IoT, 4G Cat-1, 433 MHz, Wi-Fi and Ethernet on One Platform

The radio is the decision that decides everything downstream: how many gateways a site needs, how long a battery lasts, whether the device reports a fault before someone walks past it, and whether the system still works when the local network does not. Wanlin builds the same detector, call point, sounder, gas detector, power monitor and instrument body around six transport options, so a Chittagong contractor can mix them on one host instead of running parallel systems. The table below is the selection logic our export desk works through with partners before a schedule is priced.

How partners choose: one site, one building, no IT department — 433 MHz interconnect. An estate you own and can put an antenna on — LoRaWAN with the WANLIN-868D host. Devices scattered across a city or a utility territory — NB-IoT or 4G Cat-1. A building with a BMS — Ethernet with BACnet and Modbus. Most Bangladesh partners end up running two of the six, and both report into the same cloud dashboard.

Challenges in Fire Protection Product Sourcing

Competitive Comparison: Wanlin vs Other Fire Protection Product Suppliers

Global Fire Protection Products Market Trends

The ASEAN Secretariat's economic integration programme tracks the ten-member regional market of more than 660 million people, where industrial parks, special economic zones, logistics hubs and data-centre construction drive the majority of new fire detection demand; regional buyers increasingly standardise on one supplier across several countries so the certificate set, manuals and spares travel with the project. ASEAN Secretariat

• After-sales capability wins the second order: Distributors report that the repeat order follows the supplier who can train the crew, supply the wiring diagram and the commissioning procedure in the local language, hold a spares allocation sized to the annual plan and push firmware updates over the air — capability that a spot-buy marketplace listing cannot offer at any price.
• Wireless is the default where cabling is the expensive part: Across retrofit buildings, heritage stock, remote sites and fast-track industrial units, the cost of a cable run now exceeds the cost of the device; LoRaWAN, NB-IoT, 4G Cat-1 and 433 MHz RF interconnect let contractors add detection without touching the fabric, and 10-year sealed lithium cells remove the annual battery visit that a dispersed estate could never schedule.
• Electrical fire prevention moves upstream of the alarm: Residual current monitoring, arc-fault detection and cable-lug temperature sensing on distribution boards are being written into electrical safety programmes before any smoke appears; per-circuit leakage and arc-signature logging gives operators a leading indicator, and it makes telemetered power monitors a recurring line on infrastructure work rather than a one-off.

Source: ASEAN Secretariat

Partner Success Story: South Asia Distributor and Importer (Dealer Network Programme)

Partner: A South Asia fire safety distributor with dealers across India, Bangladesh, Sri Lanka and Nepal, stocking the full WANLIN line from detectors and call points to panels, instrumentation and the A119-YW detector test kit.
Deployed: WANLIN full line, private-label packaging, country-specific documentation folders, Bangladesh-focused configuration with local-language manuals, EN 54 and project documentation packs, and a spares and consumables program sized to the partner's annual project volume
Timeline: First production batch shipped 28-35 days after sample approval; the partner's crews commissioned 200 project sites across the first season, with the documentation folders packed per site at the factory before sailing

"The distributor's brief was national approvals and language: the EN 54 file, the declaration of conformity and manuals in the languages its inspectors read had to be in the carton before it cleared. Wanlin shipped mixed-model pallets per country, printed the distributor's own brand on the cartons, and held a rolling spares allocation so the dealer network could quote lead times it could actually meet." — Representative, Bangladesh Program Partner

Field Report: Ten-Year Battery Discharge and End-of-Life Simulation — Chittagong

Location: Wanlin fire protection products QC floor, Longgang District, Shenzhen, China
Date: August 18, 2026 | Ambient: 35 C, 83 percent humidity | Equipment under test: WANLIN-780 Wireless Level Meter (LoRa / 4G / 433) (4G Cat-1 level configuration — 4G Cat-1 uplink for remote reservoirs and agricultural or municipal tanks reporting level direct to the cloud dashboard)

Sealed-lithium alarms from the Chittagong residential batch were run through an accelerated discharge profile with periodic alarm, hush and self-test events to project service life under real duty. Low-battery warning lead time and the end-of-life indication were confirmed before release.

On-site findings: 550 recorded events were reviewed against the specification sheet; response behaviour matched the printed rating across the test window, the enclosure and ingress checks held at the documented rating, and no diagnostics or connectivity anomalies were raised. The calibration record for the lot, the EN 54 certificate set and the CE declaration of conformity were placed inside the first carton of the batch before it closed.

"The promise is ten years with no visit. We prove the warning lead time instead of assuming it, because a landlord programme fails on the call-out, not on the cell." — Senior QC Engineer, Chittagong Program

Verified against the spec sheet: Projected service life met the ten-year claim under the duty profile; low-battery warning lead time confirmed; end-of-life indication operated as specified.

Wanlin Application Scenarios Across Corridor Markets

Belt and Road Programme Delivery: Corridor Project Types, Technical Support, Training and Spares

Infrastructure work is not a carton order. It is a schedule with a commissioning date, a lender's safeguard requirement, a local authority that wants documents in its own language, and an operator who has to run the system for twenty years. Wanlin supports Chittagong partners through the whole of that, from the device schedule to the twentieth-year spares call. The table below lists the corridor project types we hold reference schedules for, and the support package that ships with each.

Technical support that ships with the order: system design and layout design support from the device schedule; wiring diagrams, configuration guides and commissioning procedures in the local language; installation, commissioning and maintenance training for partner crews on site or by video; remote support and online support during the first commissioning; testing procedures and troubleshooting guides in the documentation folder; firmware and software update notifications with over-the-air delivery; spare-part and replacement-part supply with a five-year window and a documented obsolescence path; battery replacement and accessory supply against a programme sized to the partner's annual volume.

Partnership Models for Chittagong Buyers

1. Distributor and Importer Programs

For fire protection distributors, safety equipment importers, electrical wholesalers and industrial supply chains in Chittagong and Bangladesh. Volume pricing from pallet and container levels, the full WANLIN configuration family per market, CE, RoHS, REACH, FCC and EN 54 documentation, NIST-traceable calibration records and BS 5839-1 / NFPA 72 reference packs with every lot, country-specific manuals and carton printing, regional branding, spares kits and marketing support for local sales teams.

2. Private-Label and OEM Programs

For fire alarm brands, electrical brands and safety-equipment chains building their own catalogue in Bangladesh. Custom colours, logo printing on device and cabinet, branded cartons and manuals, custom carton inserts, multi-language documentation, and OEM programs from low four-figure unit quantities with a 30-day DOA replacement SLA per order.

3. Contractor and System Integrator Programs

For fire protection contractors, system integrators and facility management groups in Chittagong running project pipelines. Project-matched device schedules, panel cause-and-effect pre-programming, BACnet and Modbus register maps, cloud account provisioning for the 705 monitors, commissioning briefings for the first project, and spares allocation held against the project programme.

4. Cross-Border Trader and Sourcing Agent Programs

For trading companies, sourcing agents and import brokers in Chittagong and Bangladesh seeking a reliable Chinese source factory for fire protection products. Complete export solutions: EXW, FOB, CIF and DDP shipping terms, T/T or L/C payment handling, HS 8531 classification support, consolidated CE, RoHS, REACH, FCC and EN 54 documentation, neutral or custom packaging, localized manuals, and commission-based or volume-based partnership structures for long-term trade cooperation. Global partners, export trading companies and local distributors are welcome to contact the Wanlin export desk for exclusive-territory discussion.

5. Government, Municipal and Infrastructure Project Programs

For civil defence contractors, municipal facility departments, airport and rail operators and public-building authorities in Chittagong running compliance programmes. Site-matched device selection, pilot batches, consolidated submission dossiers, crew training for the first commissioning, and a five-year spare-parts window with a documented obsolescence path across multi-year maintenance contracts.

Frequently Asked Questions

Q: Which standards, certificates and national approvals ship with the WANLIN line?

A: The line is built to the standards approval bodies enforce: EN 54-7 smoke detectors, EN 54-5 heat detectors, EN 54-11 manual call points, EN 54-3 sounders, EN 54-23 visual alarm devices, EN 54-25 radio-linked components, EN 54-2 / EN 54-4 control and indicating equipment, EN 14604 residential smoke alarms, EN 50291 CO alarms and EN 50194 gas detectors, with CE marking under the Construction Products Regulation and UKCA for Great Britain, RoHS, REACH and FCC files, the UL 217 / UL 268 / UL 521 / UL 864 project path for the Americas, RCM for Australia and New Zealand, and SASO with SABER PCoC and SCoC, G-Mark, SNI, TISI, SIRIM, PS Mark, BFP, BIS, EAC, CCCF and SONCAP support where the market requires national approval. NIST-traceable calibration records ship per lot on instrumentation and on the A119-YW test aerosol. The certificate set, the declaration of conformity and the manual in the local language ship inside the carton for Bangladesh.

Q: Can one supplier cover detection, control, signalling, instrumentation and test equipment on a corridor project?

A: Yes. The line covers photoelectric and ionization smoke detectors, A1R / A2S heat detectors, resettable and weatherproof manual call points, EN 54-3 and EN 54-23 sounder strobes, the WANLIN-860 and WANLIN-868D host platforms, WANLIN-770 pressure transmitters and gauges, ultrasonic and radar level sensors, the WANLIN-705 smart power monitoring device with residual current and arc fault detection, catalytic, infrared and electrochemical gas and CO detectors, the WANLIN-260 home package, the WANLIN-710 smart circuit breaker and the A119-YW detector tester. One purchase order, one certificate set, one spares list — which is what a handover pack and a lender's safeguard review both need.

Q: LoRaWAN, NB-IoT, 4G, 433 MHz or Wi-Fi — which one should a Chittagong project specify?

A: It depends on what you own and what you can power. An estate you control with an antenna position — a campus, an industrial park, a tank farm — runs LoRaWAN into the WANLIN-868D host, one gateway covering kilometres with multi-year battery life. Devices scattered across a city or a utility territory with no gateway to justify run NB-IoT for decade-long battery life, or 4G Cat-1 where mains power is available and the data rate matters. A single building that cannot be re-cabled runs 433 MHz RF interconnect with up to 40 devices and no subscription. Homes and small commercial units with an existing router run Wi-Fi on the WANLIN-260 package and the WANLIN-710 breaker. Permanent commercial and industrial sites add Ethernet with BACnet and Modbus to the building management system. Our export desk works through the selection with the partner before the schedule is priced.

Q: What technical support, training and documentation do partners in Chittagong receive?

A: System design and layout design support from the device schedule, wiring diagrams, configuration guides, testing procedures, commissioning and maintenance manuals and troubleshooting guides in the local language; installation, commissioning and maintenance training for partner crews on site or by video; remote and online support through the first commissioning; over-the-air firmware and software updates with change notification; and a spare-part, replacement-part and accessory supply programme with a five-year window and a documented obsolescence path, including battery replacement programmes sized to annual volume.

Q: How is equipment proven at handover and at the annual inspection?

A: The host platform exports its event log, the WANLIN-705 monitor exports per-circuit history, and the A119-YW tester tags each device by NFC or Bluetooth and generates the site-specific pass or fail report automatically — device ID, timestamp, stimulus channel and result per detector. The report exports by USB or cloud, so the facility manager receives it before the crew leaves site, and the test aerosol is non-flammable, HFC-free and residue-free with the safety data sheet in the shipment file.

Q: What are the lead times, minimum order quantities and warranty terms?

A: Sample cartons typically ship within 10-15 days and production project batches 28-35 days after approval. OEM and private-label programmes start from low four-figure unit quantities per model, and container-level mixed-model orders are quoted per destination. The line carries a 3-year limited warranty on detectors, panels and signalling devices (2-year on instrumentation and on the tester body), a 12-month warranty on battery packs, 30-day DOA replacement, and a five-year spare-parts window with a documented obsolescence path for tenders that require a long service-life commitment in Bangladesh.

Q: Do you supply Belt and Road infrastructure projects directly, or only through local partners?

A: Both, by design. We supply the contractor or the developer directly where the project schedule requires factory-level engineering support, and we supply through the local distributor or importer who will carry the spares, the training and the warranty service afterwards. In practice the strongest programmes run together: the local partner holds the territory and the after-sales capability, and the factory holds the schedule, the documentation and the engineering. Wanlin is recruiting local partners across the corridors and does not appoint competing distributors in the same territory without discussion.

Q: Can trading companies and sourcing agents in Chittagong work with Wanlin?

A: Yes. We are a source factory supporting cross-border traders and import agents with EXW, FOB, CIF and DDP export terms, T/T and L/C payment handling, HS 8531 classification support, consolidated CE, RoHS, REACH, FCC and EN 54 documentation with national approval files where the market requires them, neutral or custom packaging, localized manuals, low minimum sample-carton orders and volume-based partnership pricing. Wanlin is recruiting global local partners, export trading companies and sourcing agents in Bangladesh, and exclusive-territory discussions are open through the export desk.

Contact Wanlin: Start Your Fire Protection Products Sourcing Project

For wholesale pricing, sample carton requests, CE, RoHS, REACH, FCC and EN 54 documentation, NIST-traceable calibration records, BS 5839-1 / NFPA 72 reference packs, OEM and private-label customization, spares and consumables programs, and partnership discussions in Chittagong and Bangladesh:

• Email: wanlinfirecontrol@163.com
• Export Hotline: +8613261677119
• Website: www.wanlinfire.com
• Shenzhen HQ: Wanlin Group, Building B, Building 1, Beisida Medical Device Building, 28 Nantong Avenue, Baolong Community, Baolong Sub-district, Longgang District, Shenzhen, Guangdong, China
• Markets: Southeast Asia, South Asia, Central Asia, the Middle East, Africa, Latin America and the Pacific — 24-hour response
• Global partner recruitment: distributors, importers, fire protection contractors, system integrators, electrical wholesalers, facility management groups, civil defence contractors, trading companies and sourcing agents welcome — exclusive-territory and OEM/ODM programs open for 2026-2027