The Siemens 3RG7640-0CC00 is a SIMATIC PXO210 M18S diffuse photoelectric sensor with energetic straight optics. It switches at 500 mm on a PNP antivalent output, rated for 150 mA continuous, and operates on 10-30 V DC. The 2-meter PUR cable with 4x0.34 mm² conductors and IP67 rating suits it for washdown or dusty environments in packaging, material handling, or conveyor lines.
500 mm sensing range is rated for a standard white test card. PNP antivalent output provides both normally-open and normally-closed signals. IP67 housing is dust-tight and protected against temporary immersion.