The Yokogawa UT55A-140-11-00 is a high-precision, portable digital pressure gauge and calibrator. It is designed specifically for the calibration, testing, and verification of pressure instruments, such as pressure transmitters, sensors, and gauges. This model is part of Yokogawa's advanced handheld family, offering exceptional accuracy and stability, making it suitable as a reliable reference standard for critical calibration work in metrology labs and field applications.