Buy NB/4G dual-mode pressure gauge in Bulk from China Wanlin Fire Equipment Supplier

NB/4G dual-mode pressure gauge - Wanlin 4G Wireless Pressure Monitoring Solutions

March 4, 2026 — Global demand for intelligent pressure monitoring continues to rise, and Wanlin Fire Protection is positioned to meet this need with its advanced NB/4G dual-mode pressure gauge product line. The company is actively recruiting global distribution partners for mutual growth.

Understanding NB/4G dual-mode pressure gauge

As a cornerstone of modern fire safety infrastructure, NB/4G dual-mode pressure gauge enable proactive pressure management through wireless connectivity and intelligent alerting. These instruments are essential for compliance with NFPA, EN, and other international fire protection standards. Distributors partnering with Wanlin gain access to a comprehensive product portfolio with full export documentation.

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Wanlin Fire Protection offers a comprehensive range of wireless pressure monitoring equipment, all designed and manufactured in-house at our China facility:

Key Features of Wanlin Wireless Pressure Gauges

• Dual-Mode Communication: NB/4G and LoRa/4G dual-mode for redundancy


• Intrinsically Safe: Ex ia IIC T6 Ga certification for Zone 0 hazardous areas


• Solar Powered Option: Integrated solar panel for remote, off-grid installations


• Pressure Data Logging: On-device storage of 10,000+ historical records


• Mobile APP Control: Real-time monitoring, configuration, and alarm management


• Competitive FOB Pricing: Direct factory pricing for export distributors

Compliance & Certifications

• SIL 2 / SIL 3 functional safety certification available on request


• UL listed models available for North American market


• MSDS / SDS and battery transport certificates provided

Installation & Configuration Guide

Proper installation ensures optimal performance and compliance:

• Install at monitoring point with appropriate thread or flange connection (M20×1.5, G1/2, NPT1/2)


• Ensure sealing gasket is correctly positioned to prevent leakage


• Mount vibration-free location when possible; use shock-absorbing bracket for pump rooms


• Verify signal strength before final mounting (NB-IoT/4G/LoRa)


• Configure reporting interval, alarm thresholds, and cloud platform via mobile APP or Bluetooth


• Perform initial zero-point calibration before commissioning

Shipping & Export Logistics

Wanlin wireless pressure gauges are classified for international shipping:

• Lithium Battery (UN 3481): Class 9 dangerous goods, packaged per IATA PI 967


• Sea Freight: Standard cargo, no special restrictions for battery-powered instruments


• Air Freight: Subject to IATA lithium battery regulations (limited quantity exemption applies)

Export Documentation Provided:

• Commercial Invoice (CI) in English


• Packing List with detailed specifications


• Certificate of Origin (CO)


• CE / FCC / ATEX certification copies


• MSDS / SDS for battery and housing materials


• B/L (Bill of Lading) for sea shipments

Shipping Options for International Buyers:

• Sea freight: Cost-effective for bulk orders (15-35 days to major ports)


• Air freight: Fast delivery for urgent orders (5-10 days)


• Express courier (DHL/FedEx/UPS): Sample and small batch orders (3-7 days)


• DDP / DAP / FOB / CIF / EXW terms available

Comparison: Wanlin vs Global Brands

Bulk Ordering for Global B2B Buyers

OEM/ODM & Partnership Opportunities

Wanlin offers comprehensive OEM/ODM services for wireless pressure monitoring equipment:

• Custom brand label and logo on device and packaging


• Custom firmware with your company name, server address, and communication protocol


• Private cloud platform deployment (on-premise or SaaS)


• Custom pressure range, accuracy, and connection specifications


• Multi-language interface (English, Spanish, Arabic, French, Portuguese, etc.)


• Co-development for special applications (medical, food, offshore, etc.)

FAQ

Q1: Are Wanlin wireless pressure gauges compatible with existing SCADA systems?

Yes. Wanlin devices support MQTT, Modbus TCP/RTU, and RESTful API protocols, enabling seamless integration with most SCADA, BMS, and IoT platforms. We also provide free cloud platform access as a standalone solution.

Q2: What is the battery life and can it be replaced?

Battery life ranges from 2-5 years depending on reporting interval and communication mode. The high-capacity lithium battery is field-replaceable. For permanent installations, we offer solar-powered and external power options.

Q3: Do you provide export documentation and certifications?

Yes. We provide full export documentation including CE, FCC, ATEX, RoHS certificates, MSDS/SDS, Certificate of Origin, and commercial invoices. Our export team handles all customs requirements for destination countries.

Q4: What is the minimum order quantity for OEM pressure gauges?

Standard Wanlin brand: MOQ 10 units. OEM custom branding: MOQ 100 units. Full ODM with custom firmware and hardware: MOQ 500 units. Samples are available for testing before bulk orders.