WNK81ma IOT Pressure Sensor 4-20mA 0-5V Output for Water Truck Fuel Oil Brake CE

Product Specification

WNK81ma IOT Pressure Sensor for Water Truck Fuel Oil Brake Applications

The WNK81ma IOT Pressure Sensor is a versatile piezoresistive pressure transducer engineered for IOT-enabled monitoring and control across multiple industrial and automotive applications. Featuring dual output options (4-20mA current loop and 0-5V voltage) and broad media compatibility spanning water, truck brake systems, fuel lines, and oil circuits, this sensor delivers reliable pressure data for smart factory, vehicle telematics, and remote monitoring platforms. CE and ROHS certified for global deployment.

Key Features

• IOT-Ready Dual Output: Simultaneous 4-20mA and 0-5V output signals enable direct connection to both industrial PLC controllers and IOT microcontroller platforms (ESP32, Raspberry Pi, Arduino), bridging legacy automation with modern cloud-connected monitoring.
• Multi-Media Compatibility: Designed for water, diesel fuel, engine oil, hydraulic oil, brake fluid, and compressed air, making it a single-sensor solution for diverse pressure monitoring tasks.
• Truck and Vehicle Optimized: Rugged construction with IP65 protection withstands vibration, temperature extremes, and road conditions encountered in truck brake pressure monitoring, fuel system diagnostics, and engine oil pressure sensing.
• Wide Pressure Range: Available in ranges from 0-10 Bar to 0-600 Bar gauge pressure, covering low-pressure water systems to high-pressure hydraulic and brake circuits.
• CE and ROHS Certified: Meets European Union safety, electromagnetic compatibility, and environmental compliance standards for worldwide market access.
• Robust 316L Stainless Steel: Wetted parts in 316L stainless steel ensure excellent corrosion resistance against fuels, oils, brake fluids, and water.

Technical Specifications

Applications

The WNK81ma serves as a universal pressure sensing solution across multiple industries, with particular strength in vehicle and fluid system monitoring:

• Truck Brake Pressure Monitoring: Real-time pneumatic and hydraulic brake system pressure measurement for heavy-duty trucks, trailers, and commercial vehicles. Enables predictive maintenance and safety compliance through IOT fleet management platforms.
• Fuel System Pressure Sensing: Fuel rail, fuel pump, and fuel filter differential pressure monitoring in diesel and gasoline engine systems. Helps detect clogged filters, pump degradation, and injection system faults before failure occurs.
• Engine Oil Pressure Monitoring: Continuous oil pressure data for engine health diagnostics, lubrication system verification, and preventive maintenance scheduling in industrial engines, generators, and marine propulsion systems.
• Water Supply and Distribution: Municipal water network pressure monitoring, pump station control, and leak detection in distribution pipelines. The 4-20mA output integrates directly with SCADA telemetry systems.
• Hydraulic System Control: Pressure feedback for hydraulic presses, lifts, steering systems, and industrial machinery. Wide pressure range supports both low-pressure pilot circuits and high-pressure working circuits.
• IOT Smart Monitoring: Cloud-connected pressure monitoring for remote assets including water towers, fuel storage tanks, irrigation pumps, and vehicle fleets. The 0-5V output enables low-power microcontroller integration with NB-IOT, LoRa, and 4G cellular gateways.

Designed for IOT Integration

The WNK81ma bridges the gap between traditional industrial sensing and modern IOT architectures. The 4-20mA output ensures backward compatibility with existing PLC and DCS installations, while the 0-5V ratiometric output provides direct, low-power connectivity to IOT microcontrollers and edge computing devices. This dual-output design protects existing infrastructure investment while enabling a gradual transition to smart, connected monitoring without replacing sensors or rewiring installations.

For fleet operators, the WNK81ma can be integrated into vehicle telematics systems to provide real-time brake pressure, fuel pressure, and oil pressure data transmitted via cellular or satellite to centralized fleet management dashboards. Early detection of pressure anomalies enables predictive maintenance scheduling, reducing downtime and preventing roadside failures.

Why Choose WNK81ma?

Manufactured by WNK, the WNK81ma combines precision with versatility. Every sensor undergoes comprehensive factory calibration and quality testing before shipment. The 316L stainless steel construction ensures decades of reliable service even in harsh environments with exposure to fuels, oils, road salt, and weather. Our engineering team provides detailed integration support including wiring diagrams, IOT platform connection guides, and Modbus gateway configuration assistance.

Custom pressure ranges, electrical connectors, cable lengths, and output configurations are available for volume orders. OEM and ODM services offered for custom-branded sensor solutions.

Contact us today to discuss your IOT pressure monitoring requirements and receive a customized quotation.