I'm only trained to calibrate the camera systems that tell you when you've drifted out of the lane, but the tool I use is capable of calibrating radar systems if you buy the more expensive accessory package. I'm certain because I have to scroll past the instructions for radar when pulling up instructions/parameters for Lane watch.

Also, for what it's worth the sensors CAN be replaced, but they still have to go through an initial calibration/programming once installed into the car.