Here are some key features and details about the Druck DPI 104 Digital Pressure Gauge:

1. Display: The DPI 104 typically features a large, clear digital display that offers easy reading of pressure values.

2. Accuracy: It's designed for high accuracy, which is crucial for calibration and other precision applications.

3. Pressure Ranges: The DPI 104 can be available in various pressure ranges, accommodating different applications. This includes gauge, absolute, and differential pressure measurements.

4. Durable Design: Built for both laboratory and fieldwork, the DPI 104 features a rugged design to withstand challenging environments.

5. Functionality: The DPI 104 might include functions such as tare, max/min pressure capture, and a pressure release valve, among others.

6. Battery-powered: Typically, the DPI 104 operates on batteries, making it portable and versatile for field applications.

7. Compatibility: The device can be used in conjunction with other Druck products, such as hand pumps, to create a complete calibration solution.

8. Applications: The DPI 104 is used in various industries including HVAC, petrochemicals, utilities, and many others where accurate pressure measurement is critical.

9. Units: The digital gauge can usually display measurements in multiple units, accommodating global applications.

10. Safety: Many of the models come with safety features like over-pressure alarms or indicators to ensure the longevity of the instrument and safety of the user.