The genuine article in the box, assembled in america. Ready to go, easy to install. Connectors fit perfectly (they each have an opposite end so you can't plug in the 2 sensors in the wrong plugs). Functioning perfectly. Comes with threads pre-treated with anti seize compound plus a small tube of extra compound. Do not use more than the smallest amount if you add from the tube. There is enough there to do probably 20 times. Also, do not get any of the compound on the sensor itself. Only on the threads. There are cheaper units, but this is very high quality and should last a very long time.