The AD SRE3C is an advanced version of the AD SRE3, designed for more complex safety applications requiring enhanced diagnostics and system monitoring. It offers the same basic functionality of redundancy and fault detection but with more advanced self-monitoring capabilities, improved response times, and LED status indicators for better system visibility. Like the SRE3, it supports manual or automatic reset modes and is commonly used in industrial applications for controlling emergency stop buttons, light curtains, and door interlocks, but with greater compatibility for intricate safety systems.