News and Trends

4G Cat.4 pressure gauge - Wanlin 4G Wireless Pressure Monitoring Solutions

September 2, 2025 — Global demand for intelligent pressure monitoring continues to rise, and Wanlin Fire Protection is positioned to meet this need with its advanced 4G Cat.4 pressure gauge product line. The company is actively recruiting global distribution partners for mutual growth.

Understanding 4G Cat.4 pressure gauge

As a cornerstone of modern fire safety infrastructure, 4G Cat.4 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.

Wanlin 4G/lorafire.com">NB-IoT Pressure Product Line

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

Product	Model	Range	Communication	Battery Life	IP Rating
4G Wireless Pressure Gauge	WL-4G-P100	0-1.6MPa	4G Cat.1	3 years	IP68
lorafire.com">NB-IoT Wireless Pressure Gauge	WL-NB-P200	0-2.5MPa	lorafire.com">NB-IoT	5 years	IP68
4G Wireless Pressure Transmitter	WL-4G-PT100	0-10MPa	4G Cat.4	2 years	IP67
NB-IoT Wireless Pressure Transmitter	WL-NB-PT200	0-4MPa	NB-IoT	3 years	IP67
LoRa Wireless Pressure Gauge	WL-LR-P100	0-1.6MPa	LoRa	3 years	IP68
4G Differential Pressure Monitor	WL-4G-DP100	0-100kPa	4G Cat.1	3 years	IP65
NB-IoT Explosion-Proof Pressure Gauge	WL-NB-EP100	0-25MPa	NB-IoT	5 years	IP68
4G Pressure Monitoring Terminal	WL-4G-PMT300	0-60MPa	4G Cat.4	2 years	IP68

Key Features of Wanlin Wireless Pressure Gauges

• Multi-Carrier 4G: Compatible with global 4G LTE networks (Cat.1/Cat.4)
• NB-IoT Deep Coverage: Penetrates underground pipe galleries and basements
• Long Battery Life: Up to 5 years on a single high-capacity lithium battery
• Corrosion-Resistant: 316L stainless steel and titanium options for aggressive media
• OEM/ODM Ready: Custom branding, firmware, and communication protocols
• Global Certifications: CE, FCC, ATEX, RoHS for international market access

Compliance & Certifications

Standard	Compliance
CE Marking	EU conformity assessment (EMC + LVD)
FCC Part 15	US electromagnetic compatibility
ATEX / IECEx	Explosion-proof certification for hazardous zones
RoHS	Restriction of hazardous substances
NB-IoT 3GPP	Compliant with Release 13/14 standards
NFPA 72 / NFPA 25	Fire protection system inspection and testing

• 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

Factor	Wanlin	Honeywell	Yokogawa
Price (FOB China)	$	$$$	$$$
Built-in 4G/NB-IoT	Yes	Add-on module	Add-on module
Cloud Platform	Free included	Subscription	Subscription
Battery Powered	3-5 years	External power	External power
OEM/ODM Available	Yes (your brand)	No	No
MOQ	10 units	100+ units	100+ units

Bulk Ordering for Global B2B Buyers

Order Quantity	Unit Price (USD)	Lead Time
Sample (1-9 units)	Contact for quote	3-5 days
Small Order (10-49 units)	$$ (Request Quote)	7-10 days
Medium Order (50-200 units)	$$ (Better Pricing)	10-15 days
Large Order (200+ units)	$ (Best Price)	15-20 days

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.

## Contact Wanlin Fire Protection Wanlin Fire Protection invites overseas distributors, OEM partners, and export traders to join our growing global network. With full certification support, flexible MOQ, and dedicated export service, we make it easy for you to enter the wireless pressure monitoring market. - Email: wanlinfirecontrol@163.com - Export Hotline: +8613261677119 - Website: www.wanlinfire.com Wanlin Fire Protection - Your trusted China manufacturer for 4G wireless pressure monitoring equipment export.