From the very early years of IIEES foundation, it has been important to have access to the technology of manufacturing seismometer and accelerometer devices for research projects. Today, IIEES-HAT accelerometer sensors manufactured by the International Institute of Earthquake Engineering and Seismology (IIEES) have been consideredasthe firstdomestic product which can be used in many vital/importantstructuresin the country such as refineries, power plants, dams, etc.

The lowest seismic level which can be measured / recorded by IIEES-HAT accelerometer sensors is 0.08 centimeters per square second. One of the advantages of these sensors is the ability to transmit the data of several sensors simultaneously through a single cable.