if that probe is put inside the tub and not secured it can be pushed away from the bottom of the tub and in turn raise the temps and possibally cause a burn! also if its taped and the tape comes lose you it can tear the snakes skin and still cause a burn on top of it!
it should be taped to the flexawatt and it should be adjusted to where the inside temps are where you want them no matter what the temp at the probe is.