I bought a fish tank thermometer online at random. The wire directly placed in the water looked too unsightly, and it was impossible to fix it on the fish tank with tape or other methods. When removing it, it would leave marks, so I drew this shell. First, I put the wire in and then threaded it into the back of the wire tube, adjusting it to the appropriate position. I fixed the thermometer's probe with a probe-fixing piece. Then, I pulled out the excess wire from the top, put the entire thermometer in, clamped it in place, and finally