The MRSK2002 is the unique instrument available in the market with Class 1 (IEC 61513), Category A (IEC 61226) and SIL 2, SIL 3 in double or triple redundancies (IEC 61508) certification. Moreover, it is the first instrument in the market to meet the certified safety standards for nuclear applications. It combines the functionality of a seismic switch for “Class 1” trip systems with the functionality of a strong motion recorder in a monitoring network.