A non-sterile hand-held device designed to be used for the transcutaneous measurement of liver stiffness based on transient elastography. It includes an ultrasound transducer and an electrodynamic transducer intended to generate a controlled transient vibration that produces a mechanical elastic shear wave propagated through the skin and liver; subsequent ultrasound measurements can be used to calculate a measure of liver stiffness/ultrasonic attenuation of tissues. The device is designed to connect to a control unit and may be available in various forms for different applications [e.g., paediatric, bariatric (obese)]. This is a reusable device.