1-channel speed monitoring is a product category rather than a specific brand, commonly associated with industrial speed monitoring devices. These devices are typically used in manufacturing, automation, and process control industries to monitor the speed of rotating equipment such as motors, conveyors, and turbines. Companies like Pepperl+Fuchs (Germany), Banner Engineering (USA), and ifm electronic (Germany) produce such sensors under broader industrial automation portfolios. The 1-channel designation refers to single-input monitoring solutions, often providing basic speed detection or overspeed/underspeed alarms for machinery safety and efficiency.