Decent product but NOT great without modifications!!!
How it works, and why it's useful seems to be the question. There are two little probes. You will place the tips of the probes at the fill level desired. When the liquid makes contact with the two probes, it completes the micro circuit and sounds the alarm. Who needs it is the question? Some older people with poor eye sight, &#34;like my grandmother.&#34; Perhaps the blind, if they don't want to stick their geeky fingers into their drink. My wife when she fills the bath and forgets she's running it. The problem is that the alarm is not loud enough. Sometimes she doesn't hear it. It would be great if there were contacts to plug in an external speaker to it. I opened mine up and soldered in speaker ports on all three and have made probe extenders. I use one on the duck pond. I use one on the horse trough. I use one for filling water drums and the bathtub. This item frees me up to do other things while they fill without overflowing. To those people who will say there are auto fill float devices for the horse trough and duck pond. I change my duck water every three days and clean the pond. I do the same for the horse trough. I don't want to dump a full trough; &#34;it's heavy!&#34; To those that will criticize my water consumption, I'm on a 14 foot shallow well for the lawn and animals. The water I dump will percolate back to the water table in less than a week and the rocks and mineral scrub the water to its formal glory. I'm on solar, so there is no electric waste to run the pump either.
Rating: 2 stars