Precision pulsatile flow mode reliably tests ultrasound system velocities. Go from storage to use in under 10 seconds. Ideal for cardiology, musculoskeletal (MSK) and breast QC applications. Lightweight at less than 10 lbs. (4.6 kg). Rugged, self-contained and battery-operated. Includes HE Gel™. Background attenuation of 0.5 dB/cm/MHz. This product includes a 1-year warranty.