Actually that is how I have the accurite's secured in all four of my tubs in my rack. I have them at floor level w/ velcro on the back of the unit and the tub. I buy the industrial velcro that comes in circle shapes and just cut in down the center in a half circle and attach on on the accurite and one on the tub. Even my big 5 yr old guy can't move it . He actually will drape himself over the top and it still doesn't fall down. Then I just run the probe under the paper to the hot side of the tub. Here is a pic below. On these accurites the gauge that senses the temp/humidity is on the back.