This product came with a price lower than average and free delivery if I am not mistaken. I received it as is (not in a box) and I could not find the manufacturer (Bosch) logo, but I found Made in Germany there.
I have this product installed and has worked fine so far, no engine alerts.
As an extra advice, I was told that when you replace just one sensor for a 10-yr old car like mine, the odds are high you will soon face a defect in one of the 3 remaining sensors, so I should have bought all 4 sensors and have them all replaced together. This looks like a reasonable advice that you might want to consider when buying a sensor.