Abstract: A wear measurement device for measuring wear of a machine component includes a probe configured to generate and send an ultrasonic wave through the component, generate a first signal upon sending the ultrasonic wave, and generate a second signal upon receiving the reflected wave. The device also includes a display configured to provide a visible output to a user of the device and a controller coupled to the probe and the display and comprising a memory and a processor. The processor is configured to receive the first and second signals and to, immediately upon receiving the signals, determine a measurement of the component based on the signals, determine a percent worn value for the component based on the measurement and stored component data, and cause the display to provide the percent worn value as a visible output.