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 , - 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 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 , - 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 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 , - 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 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 . <EOS>