An update on the Casio. Its cheap, but I don’t think it worth owning. The first one I owned quit after 8 months. It was not sold through Casio USA so it was pain getting repaired. They finally reimbursed me the amount I paid for it. I bought another one. I can’t keep the depth gauge part working. I spent so much time taking it to watch place, which kept replacing the batteries and running the reboot procedure. I finally broke down and bought the Mares Memo. It cost 5 times as much, but it’s a rock so far, 9 months. The features are much more useable and I see no problem with the 4 second sampling time. I have used it on a marked rope 3 times and it always reads the same depths as the marks.
Don
Don