USED | Fischer DS1104NA01A1 Differential Pressure Gauge The Fischer DS1104NA01A1 Differential Pressure Gauge is an essential tool for precision measurement tasks. Its robust design ensures accurate readings, making it ideal for a variety of industrial applications. With a model number of DS1104NA01A1, this gauge is identifiable by its unique characteristics and performance. Whether you're working in hydraulics, pneumatics, or any field requiring reliable pressure measurement, this gauge is engineered to deliver. Its compact size coupled with readability makes it a handy instrument for both professionals and enthusiasts alike.