The PANASONIC / SUNX EX-31B is a versatile photoelectric sensor that delivers highly reliable and accurate performance in industrial automation applications. Featuring a Thru-beam Dark ON operation mode and NPN output, this sensor is designed to detect the presence or absence of objects within a range of up to 0.5m. With its compact and durable construction, the EX-31B is suitable for use in various environments and can be easily integrated into existing systems. Offering exceptional sensitivity and precision, this photoelectric sensor ensures reliable detection and enhances the efficiency and safety of your automation processes.