Just have got tired of not trusting the "red dots" so I got this tank monitoring system. It was recommended from an expert in the marine world on sanitation. So far so good. Thought I would share the install video I made because there are virtually none on YT and the ones that are..... are, "oh yeah i'm a tech" and then cut out all the parts that you need to know.
Just for fun. No expert here. Also a link to software setup.
Software setup which leaves a lot to the imagination