A slope inclinometer (SI) is a device for monitoring subsurface movement. Slope inclinometers are often used to monitor the performance of slopes and embankments. They can provide early warning of developing instabilities; allow the assessment of pattern, depth and rate of movement; and help engineers make better and more timingly decisions on possible remedial actions to such sloping movements. Other applications include monitoring the impact of excavations on surrounding facilities, deformation of structures, and settlement of embankment fills and roadway subgrades