Analog and digital measuring devices for measuring distances and displacements, namely, inclinometers, transducers, displacement sensors, displacement transducers, magnetometers, gyroscopes, accelerometers, converters, multiplexers, microcontrollers, and orientation sensors; analog and digital electronic measuring devices with data logging and bio-feed back capabilities, namely, inclinometers, transducers, displacement sensors, displacement transducers, magnetometers, gyroscopes, acceleromete...