A clamping element, comprising: - a clamping body formed in a single piece, the clamping body having: - a first end portion with a first flat base surface, - a second end portion spaced apart from the first end portion along a longitudinal direction (X-X), having a second base surface flat and parallel to the first base surface, - a stem, which mainly extends along said longitudinal direction (X-X) between the first and second end portions (21, 22), - a measurement module fixed to the first base surface, and comprising an ultrasound sensor configured to generate, transmit and collect ultrasound traveling through the stem between the first and second base surfaces (24, 25) to measure a first physical quantity of said clamping element, characterized in that it comprises a cover element adapted to be removably fixed to the measurement module and/or the first end portion, the cover element comprising: - a communication module, in signal communication with said measurement module, configured to transmit said first physical quantity to an external device, that is external to said clamping element, - a microcontroller in signal communication with said measurement module and with said communication module to control the operation of said ultrasound sensor and said communication module, - power supply means for supplying power to the ultrasound sensor, the communication module and the microcontroller. - a clamping body formed in a single piece, the clamping body having: - a first end portion with a first flat base surface, - a second end portion spaced apart from the first end portion along a longitudinal direction (X-X), having a second base surface flat and parallel to the first base surface, - a stem, which mainly extends along said longitudinal direction (X-X) between the first and second end portions (21, 22), - a measurement module fixed to the first base surface, and comprising an ultrasound sensor configured to generate, transmit and collect ultrasound traveling through the stem between the first and second base surfaces (24, 25) to measure a first physical quantity of said clamping element, - a first end portion with a first flat base surface, - a second end portion spaced apart from the first end portion along a longitudinal direction (X-X), having a second base surface flat and parallel to the first base surface, - a stem, which mainly extends along said longitudinal direction (X-X) between the first and second end portions (21, 22), - a measurement module fixed to the first base surface, and comprising an ultrasound sensor configured to generate, transmit and collect ultrasound traveling through the stem between the first and second base surfaces (24, 25) to measure a first physical quantity of said clamping element, - a communication module, in signal communication with said measurement module, configured to transmit said first physical quantity to an external device, that is external to said clamping element, - a microcontroller in signal communication with said measurement module and with said communication module to control the operation of said ultrasound sensor and said communication module, - power supply means for supplying power to the ultrasound sensor, the communication module and the microcontroller.