Works great to replace a t5778 module on a homelabs 70 pint dehumidifier. Set inside a little plastic case with a snap closing lid you have to open. Started displaying the humidity and kept on working.

The spring is so tight and the clip is so tiny that it's painful, time consuming, and awkward trying to switch anything. The tags keep falling off the hooks. Not secure and not durable.

Clip looks like a paper clip or a clip to put on a key ring or collar. It works but small is tiny. It's a puzzler esp since it is so hard to get the tags on it! The paper clip in the attached photo is a very small paper clip.