Rainbird ESP-SMT doesn't detect rain
I've had a Rainbird ESP-SMT (1st edition) for a number of years with an outdoor weather sensor that reads rain and temperature. This year when I started up the system, I noticed that the controller is always reporting 0" rain, even after it has rained. The temperature data is still being sensed, which suggests that the issue is not a connectivity issue.
Are the rain sensors repairable or separately replaceable, or am I looking at replacing the entire weather station?
I also noticed that Sprinkler Warehouse no longer seems to carry this controller...is that a statement that the unit is no longer available, or no longer recommended?
If I end up having to replace the entire controller, is there a recommended smart controller that is comparable (or better?) than the Rainbird?