Safe standstill monitoring refers to safety systems used in industrial automation to ensure machinery stops completely before maintenance or servicing. Key brands in this field include Sick AG (Germany), which offers products like the safe standstill monitor SICK DFS60S, and Banner Engineering (USA), known for solutions like the SafeStandstill monitoring module. These systems are critical in manufacturing, robotics, and heavy machinery sectors, providing fail-safe monitoring of motor standstill to prevent accidental startups. Major products include safety relays, encoders, and monitoring modules compliant with ISO 13849-1 safety standards.