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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: 38% more headroom against the brand reseller price in Sweden through factory direct sourcing, per-model documentation, The comparison took 11 days, most of it spent waiting for documentation that two of the four suppliers never sent., 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
A fire safety wholesaler in Stockholm was paying brand distributor pricing on every carton until Nadia Haddad checked the unit cost of the same construction straight from a Chinese factory.
The renewal cycle for systems installed fifteen years ago hit Sweden at once, leaving contractors in Stockholm short of replacement heads on compatible footprints.
After three rounds the choice was between a trading company with a lower invoice and a factory that could name its SMT line and calibration bench. Nadia Haddad signed off the first Ultrasonic Level Gauge order covering 16 sites in Sweden, and the specification sheet was rebuilt around the reference standards rather than around a brand name.
The comparison took 11 days, most of it spent waiting for documentation that two of the four suppliers never sent. Picture the ordinary Monday in Stockholm: an installer opens a carton, finds a manual in one language and no declaration in the model number used on site.
The question every Retail Chain Loss Prevention Manager asks too late is simple: what happens in year three when nobody stocks spares for this range?
A fire water reserve tank in Stockholm was read by dipping, which was skipped every winter until a low level alarm finally fired.
Field case: The Stockholm reserve received a non-contact head feeding the building system, and the first low level trend was caught 11 days before the dip would have been due.
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.
The construction decisions here came from maintenance feedback rather than from a marketing brief. 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 | Guided microwave radar version for foam surfaces |
| Range | 0 to 8 metres standard |
| 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 | 24-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.
Importers who have been burned before tend to rank their suppliers on evidence rather than claims.
| Factor | Wanlin Fire | Typical Trading Supplier | Brand Name Distributor |
|---|---|---|---|
| Manufacturing depth | Standing capacity reserved for repeat partner orders, which is what keeps lead times stable in peak season | 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 | Spare parts and accessory packs held per program, including bases, covers and fixings | Limited to stock models | No customization, fixed SKUs |
| Price (factory direct) | Tiered factory pricing with 38% 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 | Spare parts and accessory packs held per program, including bases, covers and fixings | 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:
Feedback from distributor and contractor accounts in three export regions.
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, Stockholm Retail Chain Loss Prevention Manager Nadia Haddad gained 38% 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 Sweden. 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