This is a well made gauge with some nice features at a reasonable price. Data logging is well suited for unattended recording. The one-button storage capacity is great when you need to log multiple readings but can't log them on the go. Like swimming in the pool :) What we do for a living! Put it in a shallow plastic tub (oil pan), put a towel in it to soak up any splashes of water, seal the gauge (not the head) in a zip-top bag, put on a life jacket and get paid to swim! The software is pretty