Kactoily 7-1-Aquarium Probe Floating Ring

It's been running reliably in my fish pond. The only issue is that the power cord is a bit short-at just 1.8 meters, it's barely long enough; it would be better if it were a bit longer.

Before making a purchase, I reached out to customer service via email. Based on photos of my fish pond, they recommended the long range version-I'm so glad I went with it, as I might have run into connectivity issues otherwise. The probe is quite a distance from my house, but this long-range model offers a 200-meter connection range. Take my word for it: if your pond is far away from your house, you can't go wrong with this version.

I'm new to the hobby for less than 2 years, but now I have a 50-gallon freshwater tank. I hate test strips and don't trust them or drops. This is the best unit for the price.

It pulls everything together on my phone and has been reliable. Nothing much to learn, which I appreciate.

Everything comes together in one app and it just works. Checking things now takes seconds instead of a whole routine.