I’ve had a WMR300a since 25 August 2015. I live in south central Texas and have seen summer temperatures reach 110° and heat indexes of 123°. I was satisfied with the unit until a couple of weeks ago. The outside temperature and humidity started going haywire. I emailed Oregon Scientific customer service and cleaned the sensor as instructed. That failing, I emailed them again. The reply this time was “Sorry, but we have discontinued the THGN301 sensor and you should consider buying a complete new weather station or seek a third party vendor.” They didn’t even suggest who that vendor may be or what a suitable replacement part would be.
I primarily bought the WMR300a because I had previously gone through 3 AcuRite 5-in-1 Professional Digital Weather Stations at $99.95 from Lowe’s. I figured I would get much longer service from a WMR300 at over $500 and perhaps save money. WRONG!!!
After the terrible customer service and IMHO super short service life, I’m seriously considering going back to getting an AcuRite every year or so and forgetting the high priced lemon on the pole in my backyard.