Pull Cord Station for Emergency Signaling, Single Gang Box
https://nsiindustries.com/product/pull-cord-station-for-emergency-signaling-single-gang-box/
Bridgeport CA-PS Pull Cord Station is the simple solution for emergency signaling. Pulling the supplied nylon cord activates an emergency call; pushing the switch deactivates it. Built to the high standards of Bridgeport for professional users.