Posted 6/13/2012 12:52 (#2428159) Subject: Norac tip
North West IA/western AZ
Had a sensor quit working last month so I put the spare on and finished spraying. When I sent the bad one in, I got a call saying that it had gotten out of calibration and that they recaled it and sent it back, tech guy said to send them all in at the end of the year for recalibration to prevent this from happening.