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Conforms to standards for semiconductor FOUP cassettes to enable accurately detecting FOUP cassettes without being affected by the material, color, or reflectance of the bottoms of the cassettes.

Thin design enables mounting in a wider range of applications, e.g., on transfer arms.

Increased visibility with 4-direction indicator.

Optical detection of actuator operation provides a long life (mechanical life: 5 million operations min.).

Models available with PNP or NPN output.