The sensor unit looks the same as my Watson and they have been working, with occasional clean/spray lube, for three years. If you buy mount the rain gauge on something solid as the wind can cause false rain measurements.
I have been keeping an eye out again this year and, so far, have seen nothing. Last night looked promising but when viewed through bino's it was broken low cloud with the twilight showing through.
One of mine from last year.
So turning colder from midweek seems confirmed, just what turns up in a raw northerly. Have to say I would be concerned if we were looking at this http://www.reuters.com/article/2015/01/25/us-usa-weather-idUSKBN0KW26Z20150125