E2A-M30LS15-M1-B3 is a Robust Basic Automation (RBA) series inductive proximity sensor manufactured by Omron. It is a cylindrical shaped sensing device that detects metallic objects in the range of 5 to 15 mm without contact. It features a standard, robust casting, PNP output, and normally open and normally closed wiring configurations. It also features a built-in temperature compensation function, improved sensitivity control, a reverse polarity protection function, IP67 and IP69K protection, a wide variety of connection cables, and a short-circuit protection function.