The product sticker is set at the top of the sensor.
This sensor is standard a FU20-05-T1-NPT and we add the option the indication sticker which was normally placed over the front is now at the top of the box.
The serial numbers N3P601971; N3P601768 should have this sticker and the option is packed /FPS(SC-FITT. ADAPTER FU20) is packed inside the box.