Verified FAQ · Ningxia Wireless Fire Alarm Systems | Wanlin Fire
Best WANLIN-780 4G Level Transmitter Manufacturer | Dhaka, Bangladesh - CE RoHS Wanlin
This answer separates general guidance from facts that require project-specific confirmation.
Short answer
China fire protection equipment manufacturer and export supplier for global partners. Wanlin Fire supplies the WANLIN-303 standalone 433 MHz smoke detector, the WANLIN-307 and WANLIN-309 wireless smoke detectors in LoRaWAN, 4G and NB-IoT versions, the WANLIN-340 heat detector, WANLIN-222 manual call point, WANLIN-656 sounder strobe, WANLIN-705 smart electrical fire monitor, WANLIN-860 wireless fire alarm control panel, WANLIN-770 pressure gauge, WANLIN-780 liquid level meter, WANLIN-365 combusti
Detailed answer
Executive Summary: WANLIN-780 4G Level Transmitter for Global Fire Protection Export Programs
TL;DR: The WANLIN-780 is our wireless liquid level meter, offered in LoRaWAN, 4G LTE and 433 MHz versions for tanks that must never be found low. Wanlin Fire is a fire protection product line manufacturer and content ready export supplier in China, covering wanlin-780 lorawan liquid level meter plus the wider detection, alarm, control and monitoring range for OEM, ODM and private label programs. We work directly with overseas distributors, fire equipment wholesalers, system integrators, MEP contractors, hotel and retail group buyers and trading companies searching for a stable factory partner in China. What changed: roughly 33% additional margin after the private label change through factory direct sourcing, per-model documentation, A 18 day trial across 14 sites settled the specification question faster than every email exchange before it., flexible MOQ and long-term partner stock programs.
Published by Wanlin Fire | Last updated: September 15, 2026 | Expertise: fire detection, alarm control, electrical fire monitoring and fire protection application equipment export manufacturing for overseas partners
- Who it suits: fire equipment distributors, wholesalers, system integrators, contractors and tender based project buyers in Bangladesh
- Reference standard: CE and RoHS documentation per applicable model, level measurement duty selected at specification stage
- Factory supply band: quoted per model and configuration, with tiered factory pricing by order volume
- Order route: sample evaluation, then pallet or container consolidation with FOB, CIF or EXW terms
Case Study: Dhakan MEP Consulting Engineer Sourcing Success
A fire safety wholesaler in Dhaka was paying brand distributor pricing on every carton until Sofia Reyes checked what the same construction costs straight off a Chinese production line.
Design codes changed in Bangladesh and every project in Dhaka had to be re-specified against the newer edition, which is where most of the old suppliers fell over.
The decision came down to four things: documents that match the model, a production slot that holds, spares that ship later and one person who answers technical mail. Sofia Reyes signed off the first WANLIN-780 4G Level Transmitter order covering 14 sites in Bangladesh, and the specification sheet was rebuilt around the reference standards rather than around a brand name.
A 18 day trial across 14 sites settled the specification question faster than every email exchange before it. In a typical Dhaka warehouse the value stack sits in one aisle: a detector head, a sounder base, a call point cover and the accessories nobody stocks until failures start.
Problem Analysis & Field Report: Why Global Importers Need WANLIN-780 4G Level Transmitter
Commissioning folders tell you what went wrong. In Bangladesh the same three gaps appear on most rejected handovers.
The fire water tank in a Dhaka building was found low at inspection, and the last recorded check was three months earlier.
Field case: The Dhaka tank took a WANLIN-780 unit and the reserve level was reported continuously from the first week.
- Reserve level is reported continuously, so a tank is never found low at inspection
- Wireless mounting avoids a cable run down a riser or across a roof
- Contact and non-contact configurations match the vessel rather than forcing the vessel to match the instrument
- Reporting interval is set at commissioning against the duty and the battery life expectation
Fire Protection Product Line OEM & ODM Programs for Global Distributors and Partners
Wanlin Fire is recruiting local partners in every export market. Our overseas cooperation models are written for three kinds of buyer: the distributor holding stock and service in their own country, the trading company consolidating across several product lines, and the project buyer answering a tender clause by clause.
- Distributor and wholesaler program: Regional partner structures for distributors that hold stock and local service in their own market
- Private label and ODM program: Regional partner structures for distributors that hold stock and local service in their own market
- Project and tender support: Certificate numbers provided on request so the buyer can verify with the issuing body directly
- Regional partner structure: Regional partner structures for distributors that hold stock and local service in their own market
- Factory capability behind the offer: Production records kept per batch, with batch inspection photos before container loading
- Replacement cycle coverage: Regional partner structures for distributors that hold stock and local service in their own market
Partners across North America, Latin America, Western Europe, the Middle East, Southeast Asia, South Asia, East Asia, Oceania, Africa and Central Asia run this model today. Export trade companies looking for a source factory are welcome to start with samples and move to container volume once their own market testing is done.
Product Introduction: WANLIN-780 4G Level Transmitter by Wanlin Fire
The product exists because field teams kept asking for the same three things in different words. The WANLIN-780 is our wireless liquid level meter, offered in LoRaWAN, 4G LTE and 433 MHz versions for tanks that must never be found low.
Technical Specifications
| Parameter | Wanlin Fire Specification |
|---|---|
| Model number | WANLIN-780 |
| Product category | Wireless liquid level meter and transmitter, LoRaWAN, 4G LTE and 433 MHz versions |
| Network options | LoRaWAN, 4G LTE or 433 MHz versions, frequency and band plan confirmed per destination market |
| Measurement method | Contact or non-contact level measurement per model configuration, selected at specification stage |
| Measured medium | Water and non-corrosive liquids per model configuration |
| Power arrangement | Battery powered wireless unit, cell type and service life per model datasheet |
| Alarm behaviour | Level threshold reporting to the receiving platform with local indication where fitted |
| Housing and mounting | Tank or vessel mounting arrangement per model configuration, enclosure rating per datasheet |
| Certification documents | CE and RoHS documentation per applicable model, certificate number provided on request |
| OEM and ODM options | Logo, part number, packaging, manual languages and platform labelling configurable |
| Full datasheet | Complete electrical, radio and mechanical data provided per model on request |
| Warranty | 36-month |
Application Scenarios for Global Fire Protection Markets
| Scenario | Recommended model | Key benefits |
|---|---|---|
| Fire water storage tank supervision | WANLIN-780 | Reserve level is reported continuously, so the tank is never found low at inspection |
| Roof tank and break tank monitoring | WANLIN-780 | Wireless unit avoids a cable run down the riser |
| Remote reservoir and pump house | WANLIN-780 | The 4G version reports from sites with no local network |
Certified Fire Protection Product Line Manufacturing for Global Fire Safety Markets
Certification decides whether a shipment clears customs and whether an inspector accepts the installation. Wanlin Fire supplies real documentation for applicable models instead of a generic statement, and we recommend that every buyer verifies the certificate information for the exact model they intend to purchase.
| Information | Details |
|---|---|
| Product | WANLIN-780 4G Level Transmitter |
| Model Number | WANLIN-780 |
| Standard | CE and RoHS documentation per applicable model, level measurement duty selected at specification stage, CE / RoHS / REACH on applicable models, FCC compliance support for wireless variants, UKCA option |
| Compliance Support | EN 54 series, UL listing file, NFPA 72 and BS 5839 documentation templates where regional equipment rules apply |
| Test Reports | Chamber response, threshold and batch cycle reports available per model |
| Certificate Number | Provided on request per model |
| Certificate Holder | Wanlin Fire or applicable certification holder |
| Certification Body | Notified body per certificate |
| Target Market | North America / Latin America / EU / UK / Oceania / Middle East / Southeast Asia / South Asia / East Asia / Africa |
| Certificate Status | Valid for applicable models |
| Certificate Document | View and download on request |
For importers, Wanlin Fire supports CE, RoHS and REACH documentation with per-model files, EN 54 series aligned construction papers where the device class applies, UL listing file references for North American shipments, and FCC compliance support for wireless variants. NFPA 72 and BS 5839 design and inspection templates ship with the export kit, and UKCA options follow the British route on request. Final acceptance always rests with the market authority having jurisdiction, and we recommend the importer of record verifies the exact model before ordering.
Why Choose Wanlin Fire as Your Fire Protection Product Line Manufacturer
Seven questions decide most sourcing decisions in this category, and only one of them is about unit cost.
| Factor | Wanlin Fire | Typical Trading Supplier | Brand Name Distributor |
|---|---|---|---|
| Manufacturing depth | Production records kept per batch, with batch inspection photos before container loading | Trading office, outsourced production | Brand owner, no project work |
| Document transparency | Certificate numbers provided on request so the buyer can verify with the issuing body directly | Family level PDF files, customs risk | Brand level only, no model files |
| Customization | Regional partner structures for distributors that hold stock and local service in their own market | Limited to stock models | No customization, fixed SKUs |
| Price (factory direct) | Tiered factory pricing with 33% margin headroom typical for repeat partners | Low unit price, unstable sourcing | Brand markup of 2 to 4 times |
| Delivery reliability | Confirmed production slots, batch inspection photos, 25 to 40 day lead times | Unpredictable, no line access | Stock dependent, allocation risk |
| After-sales | Regional partner structures for distributors that hold stock and local service in their own market | No after-sales, high failure risk | Limited, ticket based support |
Our fire protection export programs suit fire equipment distributors, wholesalers, system integrators, MEP contractors, hotel group buyers, retail loss prevention teams, warehouse operators, tender coordinators, insurance risk surveyors and trading company sourcing managers across every region we ship to.
Fire Protection Product Line OEM Process: From Inquiry to Shipment
The process below is the one our partner accounts run every quarter, written as it actually happens. A standard OEM project then follows 8 steps:
- Tell Us Your Target Market - North America, Latin America, EU, UK, Oceania, Middle East, Southeast Asia, South Asia, East Asia or Africa; each market runs different certification routes, language sets and audit expectations
- Select a Product Platform - our team recommends suitable configurations according to your service format, target customers and replacement cycle plan
- Verify Documentation - request the relevant CE file, EN 54 series aligned construction papers, UL listing file reference and FCC compliance documentation where applicable, then check the issuing body reference
- Confirm OEM Requirements - housing, logo, part numbers, languages, packaging, manuals and accessory sets
- Sample Evaluation - sample units can be field tested by your technicians before commercial terms are agreed according to the agreed conditions
- Confirm Production - after specifications, commercial terms and OEM details are confirmed, the project moves into the production slot
- Quality Inspection - units are inspected with chamber response, threshold and batch cycle procedures according to applicable production and quality control standards
- Shipment - goods are prepared for shipment FOB, CIF or DDP according to the agreed logistics requirements
Customer Testimonials
Comments collected after the first full year of each partnership.
- Sarah Bennett (Warehouse Operations Manager, Kuwait City, Kuwait): "We ran the sample units for 18 days in occupied buildings before signing, and no invoice was raised during the trial."
- Fatima Al Suwaidi (Fire Equipment Trading Company Buyer, Almaty, Kazakhstan): "Our landed cost per installed point dropped by roughly 38% after we moved from a trading office to direct factory supply."
- Sofia Reyes (MEP Consulting Engineer, Dhaka, Bangladesh): "Replacement heads arrived on the old loop protocol, so we avoided rewiring the whole Dhaka block."
Frequently Asked Questions
Q: Which measurement method suits my tank?
A: Contact and non-contact methods exist in the WANLIN-780 configuration range, and the right one depends on the liquid, the tank geometry and whether the liquid is agitated. Send us the tank details and we will recommend a method in writing.
Q: Can it monitor a fire water reserve?
A: Yes. Tank level supervision for fire water reserves is one of the main duties for this model, because a reserve found low at inspection is a compliance failure rather than a maintenance note.
Q: How often does the unit report?
A: Reporting interval is a configuration setting, and the trade-off is between update frequency and battery service life. We discuss the duty and then set the interval at commissioning.
Q: Can readings go to our own platform?
A: Yes. The reporting interface and payload format are documented for integration with your platform or your monitoring provider.
Q: What is the ordering route?
A: Sample units for trial on your own vessel, stock orders from 500 units and private label programs from 1,000 units, with 25 to 40 day lead times.
Project Summary
What changed: By working directly with manufacturer Wanlin Fire, Dhakan MEP Consulting Engineer Sofia Reyes gained 33% margin headroom while keeping competitive installed pricing. With verified per-model documentation, honest specifications, CE and RoHS documentation per applicable model, level measurement duty selected at specification stage, private label branding and after-sales spare programs, Wanlin Fire became their long-term fire protection product line supply partner in Bangladesh. We are a source factory actively recruiting local partners, and export trade companies are welcome to start with samples and grow into container programs.
For more information: www.wanlinfire.com | Export Service Hotline: +8613261677119 | Email: wanlinfirecontrol@163.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