We gave up on the wireless gauges a few yrs back. I tried several brands & models. None were reliable for me. Big problem was usually the filling of the "tipping buckets". Seems bugs or leaves or some other type of debris would foul up the measuring system. It was usually easy to understand. You'd go out & look after a heavy rainstorm with an indication of 0.10". There would be a big old leaf covering the funnel with water sitting on top of it, or something similar.

The old manual read "cylinder-in-a-cylinder" has turned out to be what we feel is the most accurate & reliable. It's big, easy to read, and durable. It too has a funnel, but the hole is big enough that bugs or leaves don't seem to bother it.....here.