Tilt Sensors are used to monitor changes in the tilt of a structure. Such changes may be caused by excavation, tunneling, dewatering, or loading of the structure.
There´re some types:
Portable Tiltmeter: Is portable and biaxial
Mems Tiltmeter: The installation can be on a ceiling, floor, or vall. Is uniaxial.
Tilt Sensor: is medium-resolution tiltmeter that offers a wider measurement range of +/- 10 degrees. Available in uniaxial or biaxial versions,can be read remotely, easily automated, compact and easy to install, reusable.