The portable tiltmeter is used with the tilt plates to monitor changes in the inclination or tilt of a structure. Typical applications are monitoring the tilt of retaining walls, piers, piles, building structures and any other desirable structures caused by construction activities such as mining, tunneling, soil compaction, excavation, dewatering and piling etc. The Tiltmeter System consists of three components: Tilt plates, tiltmeter, and readout.