Schneider Electric XX6V3A1NAM12 Ultrasonic Sensor, Ultrasonic Sensor Cylindrical M30 - Sn 1 M - No - M12 Connector, Part Number: Amazon.co.uk: Business, Industry & Science
SE - Carlo Gavazzi Ultrasonic Sensor, M30 Cylinder, 12-30 VDC, 250-3500 mm Sensing, NPN NO/NC Output, UA30CAD35NKTI - Sords Electric