Physical Process Analysis Design Group of RPC Radiy is set up for development of seismic protection systems, calibration equipment and qualification of product data at NPP. The Design Group designs and implements the Seismic Sensor that is the source of seismic data for the seismic protection equipment. Other successfully designed and implemented product is the vibration measuring system for periodic calibration of seismic sensors in semi-automatic mode. Besides nuclear products, the Design Group has developed the Information Acquisition and Display Unit that is the basic item in any monitoring system design including the Automatic System for Early Diagnostics of Emergencies. Additionally, the Design Group develops the angle precision gages for the wide scope of measurement.