Its both sensors together as one unit, you also do not need to remove the timing belt to change the part, you can zip tie the belt to the cam pulley, remove the center bolt from the pulley and move the pulley away from the head, I have changed several of these sensors like this procedure. This part has a problem with melting over time, the black goo comes out of the sensor and it needs replaced.
Keep tension on the timing belt by pulling it and the pulley upwards towards the hood so the belt tensioner does not put too much tension on the belt making it too short to be put back together properly. I use something to tie the pulley upwards to keep tension on it always. After the job is done, don’t forget to cut away the zip ties holding the belt to the pulley. GOOD LUCK.