Ultrasonic Pulse Velocity Equipment is a non-destructive testing (NDT) device that is used to measure the velocity of ultrasonic waves in concrete, masonry, and other building materials. The device consists of a transmitter and a receiver that are placed on opposite sides of the material being tested. The transmitter generates a high-frequency pulse that travels through the material, and the receiver detects the pulse as it passes through the material. The time taken for the pulse to travel through the material is measured, and the velocity of the ultrasonic waves is calculated.