The STI MS4336BR Minisafe light curtain receiver is a 36-inch-long sensor used in industrial automation to guard machinery by detecting beam interruptions. It works with a matching Minisafe transmitter to form a safety light curtain with a range up to 30 ft (about 9.1 m). The receiver weighs 3 lb and is sold as a standalone MS4336BR unit within STI's Minisafe family. In practice, this device provides a beam-based safety barrier around moving equipment and access points in manufacturing environments, helping meet guarding requirements for automation systems.
