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