Panasonic pm 24 series ultra small pnp photoelectric sensors panasonic pm u24p a photoelectric sensor from panasonic which has a u type body style the sensor comes in an ultra small package making it suitable for high density usage featuring a short response time contactless switch object detection position detection and led display of switching status making this sensor suitable for a wide range of applications panasonic pm u24p ultra small micro photoelectric sensor u type pnp