Thanks for the site, lost of stuff on there for sure, trying to find one that does not need monthly costs but seams to be what's bestHello and welcome!
You might want to try the site KOIPHEN.COM. They are a group dedicated to koi, and are usually up on any and all accessories and equipment related to koi ponds. I recall seeing something over there a while back, but don’t recall any particulars, such as accuracy, convenience, or cost. They might be better able to help you. If you do find anything, PLEASE get back with us!
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