The PosiTest DFT we sell measures on both steel and aluminum and will tell you with an indicator on the screen what type of metal you're measuring.
F = ferrous or steel
N = Non-ferrous or aluminum
The PosiTest DFT is also a 3% gauge so it's very accurate. Not sure what the Highline?
Originally Posted by SeaJay's
It's more just to get a general idea of the paint thickness, see if any areas are low, or been repainted. It's a great tool to have.
That's right, it's basically a "Big Picture"
indicator or a tool to help you make the "Go" or "No Go"
decision as to whether to sand or even just buff on the paint.
It's also a good marketing tool to show your customer's you know what you're doing and by default, any detailer they meet that doesn't have one or even know how to talk intelligently about paint thickness it shows again, that you know what you're doing.