I am replacing the sensor - $12..easy to do. The gauge on the other hand looks a bit time consuming..... if I can find one. It moves such a small amount that you have to assume it's not functioning at all. I'm hoping its the sensor.
Also, can appreciate the cost improvement on my infared tool. I paid over $3grand for one to trouble shoot bearings on a high speed production line - 20+ years ago. And thought I had a real deal!
