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TL;DR: The WL-LV1100 measures 0 to 8 metres non-contact with 0.5 percent accuracy and eight degree beam, with a 0 to 20 metre long tank variant. Wanlin Fire is a fire protection equipment manufacturer in China supplying ultrasonic level gauge and the wider application equipment range for OEM, ODM and private label export 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. Key result: roughly 33% additional margin after the private label change through factory direct sourcing, per-model documentation, Nadia Haddad ran the pilot for 29 days and measured cost per installed point instead of cost per carton., flexible MOQ and long-term partner stock programs.
Published by Wanlin Fire | Last updated: September 14, 2026 | Expertise: fire detection and fire protection application equipment export manufacturing for overseas partners
After a failed authority inspection in Singapore, Nadia Haddad had 30 days to replace detector stock across 29 buildings and needed factory capacity rather than catalog promises.
The shift towards IoT reporting in Singapore turned ordinary detector orders into platform questions, and every second enquiry in Singapore now mentions a gateway.
The final meeting lasted forty minutes. Unit price was agreed in five; the rest went to lead times and replacement part availability. Nadia Haddad signed off the first Ultrasonic Level Gauge order covering 29 sites in Singapore, and the specification sheet was rebuilt around the reference standards rather than around a brand name.
Nadia Haddad ran the pilot for 29 days and measured cost per installed point instead of cost per carton. The awkward moment usually arrives at handover in Singapore, when the commissioning engineer asks for the per-point test record and the folder contains only a delivery note.
Commissioning folders tell you what went wrong. In Singapore the same three gaps appear on most rejected handovers.
A fire water reserve tank in Singapore was read by dipping, which was skipped every winter until a low level alarm finally fired.
Field case: The foam store in Singapore was re-specified with microwave radar and has run 6 months without a reading fault.
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.
Partners in North America, Western Europe, the Middle East, Southeast Asia, South Asia, Oceania, Africa and Latin America 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.
What matters for an export partner is that this family is repeatable: the second container behaves like the first one. The WL-LV1100 measures 0 to 8 metres non-contact with 0.5 percent accuracy and eight degree beam, with a 0 to 20 metre long tank variant.
| Parameter | Wanlin Fire Specification |
|---|---|
| Measuring principle | Non-contact ultrasonic pulse echo |
| Range | 0 to 20 metres long tank variant |
| Accuracy | 0.5 percent of range with temperature compensation |
| Output | 4-20 mA two-wire |
| Beam angle | 8 degrees nominal, narrowing with horn antenna version |
| Dead band | Under 0.3 metres from the sensor face |
| Ingress rating | IP67 head with sealed cable gland |
| Tank media | Water, diesel, foam concentrate and most non-aggressive liquids |
| Standard alignment | CE and RoHS documentation on applicable models |
| Warranty | 18-month |
| Scenario | Recommended model | Key benefits |
|---|---|---|
| Fire water reserve tank | WL-LV1100 | Non-contact head keeps no moving part inside the tank |
| Foam concentrate store | WL-LV1100 | Radar version handles the foam layer on top of the liquid |
| Underground pump chamber | WL-LV1100 | IP67 sealed head survives a flooded chamber event |
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 | Ultrasonic Level Gauge |
| Model Number | WL-LV1100 |
| Standard | CE and RoHS with non-contact measurement records, CE / RoHS / REACH on applicable models, FCC compliance support for wireless variants, UKCA option |
| Compliance Support | Documentation templates and technical file support 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 / 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, and FCC compliance support for wireless variants. 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.
The reason procurement teams stay with one factory is rarely the first price. It is that nothing surprises them after the third container.
| Factor | Wanlin Fire | Typical Trading Supplier | Brand Name Distributor |
|---|---|---|---|
| Manufacturing depth | Sample units built on the same line as production units, not hand assembled in a separate room | Trading office, outsourced production | Brand owner, no project work |
| Document transparency | UKCA route supported per applicable model where the customer requests the British market paperwork | Family level PDF files, customs risk | Brand level only, no model files |
| Customization | Sample first ordering, so your technicians can test before commercial terms are agreed | 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 | Sample first ordering, so your technicians can test before commercial terms are agreed | 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.
A first cooperation follows eight steps, and none of them require you to trust a brochure. A standard OEM project then follows 8 steps:
Three partner accounts from comparable markets, quoted with permission and shortened for length.
A: Nothing sits in the water, so nothing fouls, and the reading stays stable across years with sediment build up. It also avoids any potable water contamination question.
A: Radar suits foam covered or vapour heavy surfaces where ultrasonic echo gets absorbed. The trade off is unit cost against the consequence of a wrong tank reading.
A: Under 0.3 metres from the sensor face. Mounting height and the overflow level decide the real usable range, so both are checked before the order is confirmed.
A: Yes. The 4-20 mA loop connects to a standard analogue input, and the RS485 Modbus RTU version gives a digital register set to most BMS gateways.
A: Evaluation units start at 2 pieces. Distributor orders start at 50 units and OEM labelling plus custom scale printing starts at 200 pieces.
Key result: By working directly with manufacturer Wanlin Fire, Singapore Government Project Tender Coordinator Nadia Haddad gained 33% margin headroom while keeping competitive installed pricing. With verified per-model documentation, honest specifications, CE and RoHS with non-contact measurement records, private label branding and after-sales spare programs, Wanlin Fire became their long-term fire protection equipment supply partner in Singapore. 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