In-place inclinometer (IPI) sensors are designed for automatic monitoring of critical locations. Jointed together and suspended inside the casing where deformation may occur, a string of IPI sensors allows to monitor the continuous profile of the inclinometer casing. Vertical and (sub)horizontal in-place inclinometers are equipped with magneto-resitive contactless pendulum, solid-state accelerometer or forcebalanced servo-accelerometer sensors. Separated signal cable is required for each IPI, but also a group of IPI can be linked together to have a single multicore cable output