Pool thermometers come in two basic types: those that float and those that don’t!
Floating pool thermometers are great for taking the temperature near the surface of a pool. But they do have a drawback: they can get in the way of kiddos, who can break them (some are glass).
Non-floating thermometers are excellent for spas, as they take the temperature deeper than the surface (that can matter in the winter). And non-floating thermometers can be secured near the edge of the pool . . . away from children.
For the best budget-friendly pool thermometer that floats, we liked eLander Pro Water Thermometer best. Accurate, easy to use . . . and easy on the wallet.
What We Liked
• Works well.
• String lets you tie it down, to keep it from floating around the pool.
What Needs Work
• Markings could be easier to read. We found it easy enough to read this thermometer, but others have somewhat larger markings (which make it easier to read from a distance).
• Can fog up after long-term use.