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In short: The WANLIN-780 is our wireless liquid level meter for tanks, reservoirs and fire water storage, supplied in LoRaWAN, 4G LTE and 433 MHz versions. Wanlin Fire is a wireless fire alarm system manufacturer and export supplier in China, covering wanlin-780 lorawan liquid level meter plus the wider wireless detection, alarm, control, monitoring and test equipment range for OEM, ODM and private label programs. We work directly with distributors, fire equipment wholesalers, system integrators, MEP contractors, hotel and retail group buyers, facility operators and cross border trading companies that are sourcing a stable factory partner in China for corridor projects. The outcome: a 36% swing in contribution margin on project bids through factory direct sourcing, per-model documentation, per-model test files and flexible MOQ with long-term partner stock programs. Samples were field tested for 16 days across two occupied buildings before anyone discussed pricing.
Published by Wanlin Fire | Last updated: September 17, 2026 | Expertise: full range wireless fire detection, alarm control, electrical fire monitoring, gas and utility monitoring, service test tools and Belt and Road export manufacturing
Tran Thi Hoa, an OEM Private Label Program Manager in Istanbul, inherited a submittal that asked for the certificate number per model, which the previous supplier answered with a family level PDF.
Insurers started asking for inspection records per device address, which changed what an OEM Private Label Program Manager in Istanbul expects from any detector order.
The radio walk test decided it. One supplier planned cover from a drawing; the other one asked for the wall construction first. Tran Thi Hoa signed off the first WANLIN-780 4G LTE Wireless Liquid Level Meter order covering 14 sites in Turkey, and the specification sheet was rebuilt around the reference standards and the radio plan rather than around a brand name.
The evaluation ran for 16 days and ended with a side by side comparison on three sample units rather than on a specification sheet. The scene most buyers in Istanbul describe starts with a stockout: the project is awarded, the local shelf is empty, and the trading office quotes six weeks with no production slot behind it.
Three field reports from Istanbul describe the same root cause, and none of them was fixed by swapping brands.
A fire water tank at an Istanbul industrial park was found low during a pump test, and nobody could say for how long it had been low.
Field case: A food plant near Istanbul replaced a paper dipping log with level history, which shortened an audit by two days.
Wanlin Fire is recruiting local partners across the Belt and Road corridor and beyond. Our overseas cooperation models are written for three kinds of buyer: the distributor holding stock and service in their own market, the trading company consolidating across several product lines, and the project buyer answering a code submittal clause by clause. Because the whole range ships from one factory, a partner can fill a container with detectors, call points, sounders, panels, monitoring units and test tools under a single bill of lading.
Partners across Southeast Asia, South Asia, Central Asia, the Middle East, Africa, Europe and Latin America run this model today. Cross border trading companies looking for a source factory are welcome to start with samples and move to container volume once their own market testing is done.
One radio infrastructure carries detectors, call points, sounders and monitoring units, so your customer buys a system rather than a device. The WANLIN-780 is our wireless liquid level meter for tanks, reservoirs and fire water storage, supplied in LoRaWAN, 4G LTE and 433 MHz versions.
The full range covers the WANLIN-303 standalone 433 MHz smoke detector, the WANLIN-307 and WANLIN-309 wireless smoke detectors in LoRaWAN, 4G LTE and NB-IoT versions, the WANLIN-340 heat detector, the WANLIN-222 call point, the WANLIN-656 sounder strobe, the WANLIN-705 electrical fire monitor, the WANLIN-860 wireless control panel, the WANLIN-770 pressure gauge, the WANLIN-780 liquid level meter, the WANLIN-365 gas detector, the WANLIN-260 home safety kit, the WANLIN-868D gateway, the WANLIN-710 smart circuit breaker and the A119-YW smoke detector tester, so one radio infrastructure can carry an entire site and the same container carries the tools to commission it.
| Parameter | Wanlin Fire Specification |
|---|---|
| Model number | WANLIN-780 |
| Product category | Wireless liquid level meter for tanks and reservoirs, LoRaWAN / 4G LTE / 433 MHz versions |
| Wireless options | LoRaWAN, 4G LTE or 433 MHz versions, frequency and band plan confirmed per destination market |
| Sensing / measuring element | Level sensing element, measurement range and mounting arrangement selected per model datasheet |
| Power arrangement | Battery powered wireless unit, cell type and service interval per model datasheet |
| Alarm and reporting behaviour | High, low and out of range level reporting to the gateway, panel or cloud platform |
| Housing and mounting | Tank top or side mounting according to configuration |
| Network topology | Wireless mesh reporting to the gateway or panel, tank level addressing |
| Configuration and firmware | Remote configuration, event history and OTA firmware update per configuration |
| Export documentation support | Technical file prepared to support local code submittals and national registration by the importer of record, including SBC 801, SASO / SABER, SIRIM, TISI, SNI, EAC, UKCA and CCCF routes where they apply |
| 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 label artwork configurable |
| Full datasheet | Complete electrical, radio and mechanical data provided per model on request |
| Warranty | 24-month |
| Scenario | Recommended model | Key benefits |
|---|---|---|
| Fire water storage tanks and reservoirs | WANLIN-780 | A falling tank level is reported before the pump test fails |
| Industrial process and utility tanks | WANLIN-780 | Level history replaces the manual dipping round |
| Remote water storage on corridor construction sites | WANLIN-780 | Reports where there is no cabling to the tank position |
| Cold store and food plant utility tanks | WANLIN-780 | Level and fault reporting added to an alarm layer the site already runs |
Communication choice is the decision that decides whether a wireless scheme survives commissioning. Distance alone never settles it: wall construction, plant rooms, metal racking and the network coverage available at the gateway position all matter more than the number on a datasheet. Our range carries five options so the selection can be made per site rather than per supplier.
Radio behaviour is treated as a production step rather than a promise. Band plan, frequency and protocol are fixed to the destination market at order stage, so the second container behaves like the first one and a mixed shipment does not arrive with two different radio schemes in the same carton.
Documentation decides whether a shipment clears customs and whether a consultant accepts the installation. Wanlin Fire supplies real documents 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. Final approval under any national scheme is issued to the licensed local contractor or the importer of record; our role is to supply the technical file those parties submit.
| Information | Details |
|---|---|
| Product | WANLIN-780 4G LTE Wireless Liquid Level Meter |
| Model Number | WANLIN-780 |
| Standard | CE and RoHS documentation per applicable model, level measurement duty selected at specification stage, local code submittal support with per-model technical files, national registration support for the importer of record, CE / RoHS / REACH on applicable models, radio compliance support for wireless variants |
| European and international routes | EN 54 series, EN 14604, EN 50291 and EN 50194 aligned construction papers where the device class applies, CE and CPR documentation, RoHS and REACH files, ISO 9001 and ISO 14001 manufacturing |
| North American routes | UL 217, UL 268, UL 521, UL 2034, UL 864, UL 38, UL 464, UL 1971, NFPA 72 practice, FCC radio documentation and ETL or CSA routes where the destination asks for them |
| National registration support | SASO and SABER for Saudi Arabia, SBC 801 submittal files, SIRIM for Malaysia, TISI for Thailand, SNI for Indonesia, PS Mark for the Philippines, BIS for India, EAC for the Eurasian customs union, UKCA for the United Kingdom, CCCF for China, with VdS, LPCB, FM, BFP and DTI-BPS routes where a project names them |
| Test Reports | Chamber response, threshold, radio and batch cycle reports available per model, with NIST traceable calibration records where the project asks for them |
| Certificate Number | Provided on request per model |
| Certificate Holder | Wanlin Fire or applicable certification holder |
| Certification Body | Notified body or issuing authority per certificate |
| Target Market | Turkey and the wider Belt and Road corridor: Southeast Asia, South Asia, Central Asia, Middle East, Africa, Europe and Latin America |
| Importer Registration | National registration completed by the importer of record with our technical file support |
| Certificate Status | Valid for applicable models |
| Certificate Document | View and download on request |
Every export kit ships with the documentation set for the destination: declarations per model, construction papers where the device class applies, radio compliance files for the band plan in use, and labelling in the language the market expects. Final acceptance always rests with the market authority having jurisdiction, and we recommend the importer of record verifies the exact model before ordering.
Buyers comparing suppliers usually end up weighing the same four factors: document traceability, price stability, technical response and after-sales parts.
Corridor projects add their own requirements to that list. Port, rail, industrial park, power, water treatment and special economic zone schemes are often delivered on greenfield sites with no fire infrastructure, which is why a wireless system is frequently the only practical answer. Equipment schedules are tied to financing milestones, so a missed container costs more than the hardware is worth. Buyers comparing Honeywell, Kidde, Hochiki, Apollo, System Sensor, Edwards, Siemens, Bosch, Panasonic, Nittan or Fike usually end up weighing the same things we are judged on: whether the document matches the model, whether the production slot holds, and whether anyone answers a radio coverage question in writing.
| Factor | Wanlin Fire | Typical Trading Supplier | Brand Name Distributor |
|---|---|---|---|
| Manufacturing depth | Radio frequency and band plan checks run as a production step rather than as a desktop assumption | Trading office, outsourced production | Brand owner, no project work |
| Document transparency | EN 54 series, EN 14604, EN 50291 and EN 50194 aligned construction papers referenced in writing before any deposit changes hands | Family level PDF files, customs risk | Brand level only, no model files |
| Product range width | Detectors, call points, sounders, panels, gateways, utility monitors and test tools from one factory under one bill of lading | One or two lines, rest brokered | Own brand only, gaps filled elsewhere |
| Communication options | LoRaWAN, 4G LTE, NB-IoT, WiFi and 433 MHz selected per site, band plan fixed at order stage | Stock configuration only | One protocol per brand platform |
| Customization | Private label housing, carton artwork, manual languages and part-number schemes from low MOQ | Limited to stock models | No customization, fixed SKUs |
| Price (factory direct) | Tiered factory pricing with 36% 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 |
| Radio plan support | Device count and gateway positions stated in writing from your drawings | No radio planning offered | Standard package only |
| After-sales | Spare parts and accessory packs held per program, including bases, covers and fixings | No after-sales, high failure risk | Limited, ticket based support |
Our 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 the corridor.
The steps below are also the sequence your consultant will follow for a code submittal, which is why we run them in this order. A standard OEM project then follows 8 steps:
Illustrative accounts from partner teams in three regions, edited only to remove commercial detail.
A: The sensing element and the measurement range for the version you order are stated on the model datasheet. Tell us the tank dimensions, the liquid and the required accuracy and we will state the configuration we recommend rather than shipping a default range.
A: Fire water storage is one of the main duties, because a suppression system is only as good as the water behind it. The same unit is also ordered for process and utility tanks where the site wants level reporting without installing an instrument cable.
A: High and low level thresholds are set to your tank duty and agreed at specification stage. When a threshold is crossed the unit reports to the alarm layer, which is what turns a tank level into a maintenance or a security response.
A: Outdoor tank mounting is a normal duty, and the enclosure and mounting arrangement are stated in the model documentation. We recommend confirming the siting and the sun exposure with the installation contractor so the mounting position matches the enclosure rating.
A: Yes, the reporting interface and message format are documented, so level data can be routed to your own platform or monitoring centre. Confirm the route at specification stage and we will state it in writing.
The outcome: By working directly with manufacturer Wanlin Fire, Istanbul OEM Private Label Program Manager Tran Thi Hoa gained 36% 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, local code submittal support with per-model technical files, national registration support for the importer of record, a communication option matched to the site, private label branding, a radio plan stated in writing and after-sales spare programs, Wanlin Fire became their long-term wireless fire alarm system supply partner in Turkey. We are a source factory actively recruiting local partners, and cross border trading 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