The PANASONIC / SUNX SH-21 Photoelectric Sensor Thru-beam Light is a highly reliable and versatile sensor suitable for a wide range of industrial applications. With a detection range of 0.3m, this sensor uses a through-beam light to detect the presence or absence of objects. Featuring a light ON/dark ON output function, the SH-21 offers flexibility in its operating mode, allowing it to be easily customized to suit the specific needs of your application. With its compact design, this sensor can be easily installed and integrated into existing systems. It is designed to withstand harsh industrial environments, ensuring durability and long-lasting performance.Whether you need to detect the presence of objects on a production line, monitor material flow, or control automated processes, the PANASONIC / SUNX SH-21 Photoelectric Sensor Thru-beam Light is a reliable and efficient solution.