I got the Pro Series 3 Radon Gas Detector before I started the radon fan. It read 15.8 two days later. I started the fan and after two days it read 1.2.
Thank you for handling such great products and for your advice. I will make sure your name and web site is put out down this way. It was far cheaper than the $1800 that was quoted. MA Knoxville, Il
I emailed Val after a radon specialist wanted to dig holes in the basement to determine why my radon mitigation system was not working. The radon level