Civil Structural Health Monitoring Workshop. Berlin. Germany. 2012. Report. To improve robustness of SHM systems each sensor, datalogger, host controller and other devices of SITIS: Sprat system use unique electronic device identification. Those identification tags together with sensor data, timestamp and checksum form the basis of universal packet. Each data packet consists of the header with sensor and datalogger tag, datalogger time, the sensor data and the packet checksum. The packets are stored in internal memory of each datalogger, and then can be sent, stored or managed in the other devices and server software via wired or wireless network.