The Encardio-rite model EAN-41M/EAN-42M beam sensor is attached to the structures for monitoring any differential movement and tilting of structures. It can be mounted both vertically and horizontally and has a long term reliability. These beam sensors consist of MEMS sensor housed inside the beam. Model EAN-42M comes with SDI-12 digital interface such that all sensors can be connected through single bus cable to datalogger.