This is an NDT Systems Avenger II Ultrasonic Flaw Detector.
It is a handheld, lightweight (approx. 800g) device used for nondestructive testing to find defects like cracks, pores, and inclusions in materials.
The kit includes the main unit, a protective hard case, cables, and various accessories.
It features data storage, potentially expandable to 32 GB, and Micro USB connectivity for data transfer