This listing is for a NEW Potter OSYSU-2. This outside screw and yoke supervisory switch monitors the open position of OS&Y gate valves used in fire protection systems. The device provides supervisory signaling when a protected valve is moved from its normal operating position, supporting fire alarm monitoring and system integrity verification.

This listing is for a NEW Rittal SZ 2500.470 Standard Position Switch. The SZ 2500.470 is an enclosure accessory used to monitor door position and provide switching functions for lighting, status indication, monitoring, and control circuits within industrial cabinets and enclosure systems. The switch includes a prewired connection lead and mounting hardware for enclosure installation.