The EAN-70M portable tilt meter incorporates a sensor based on precision MEMS accelerometer technology. It is housed in a rugged frame with machined surfaces that facilitate accurate positioning on the tilt plate. This portable tilt meter is suitable for monitoring change in the inclination of a structure. It has excellent temperature stability. The tiltmeter system includes tilt plates, a portable tilt meter, and a readout unit. Die-cast aluminum tilt plates, available from Encardio-rite are dimensionally stable and weather resistant. Tilt plates are mounted on the structure at specified locations. Tilt readings can be obtained quickly and easily by a single operator.