Additel ADT601Ex [ADT601Ex-50-GP150-PSI-N] Intrinsically Safe Digital Pressure Gauge, 0.5% FS Accuracy, 1/4NPT Male, 0 to 150 psi. The Additel ADT601Ex Digital Pressure Gauge is an intrinsically safe, durable, easy-to-navigate system with extensive battery life. With a design built to handle up to 3x overpressure in addition to shock and vibration resistance certifications, it has been tested and approved for use in potentially explosive environments including oil and gas platforms, refineries, chemical plants and gas processing facilities. The ADT601Ex is designed to be easy to navigate for technicians, including a one-button press backlight for dimmer environments. Pressure reads can be displayed in larger font sizes for accurate reads from several meters away, ensuring maximum efficiency. The ADT601Ex was built with membrane buttons, which allows for easy cleaning. Paired with an extensive battery life, the ADT601Ex is fairly self-sufficient and requires minimal upkeep.