AcuRite 5 in 1 weather station -- rain gauge doesn't work

Yep, seems 2-2.5 years is it. Sad. I came here to check to see if anyone has seen my issues, but it's looking like "It's dead, Jim."

I got my 5 in 1 about 2-3 years ago. It's been flawless, and a constant companion by my office desk since then. Last week, the display showed a -40 Deg. F temperature with 0% humidity, and the antenna flashing, and every once in a while cycling through the signal strength bars. I tried resetting both sensor and display, replacing the batteries in the sensor that were showing to be half done, and even changing the channel on both.

After pressing any button on the display, it goes into 'searching for signal' mode, and then after about 5 minutes goes to 'no wireless signal' on the ticker across the bottom of the screen. The sensor icon now no longer shows the antenna symbol by it. I guess it's done.