I have two of the ETG-1 gauges and they've been very helpful to me for the kind of work that I do, but I need to get a gauge that measures coating thickness on both Ferrous and Non-Ferrous objects. The FS488 from
www.wholesalepaintmeters.com looks very nice, but it doesn't have the accuracy that I need. It's accuracy is 5% and it reads to 1/2 mill, but I need a gauge that's more accurate than 5% and reads to 1/10th of a mill.
I spoke to the guy at Wholesalepaintmeters.com and they have a deal where you can buy 3 of their FS488 paint meters for $299 each if they're shipped to the same address, but he'll take 3 different card numbers. If enough of you live within the same areas, this would be a terrific deal 'IF' this gauge is what you're looking for.
He said they will be coming out with a new thickness gauge in about ~30 days or so that will be more accurate. It will be called the FS502 and it will cost about $100 more than the FS488. It's accuracy will vary between 1% and 3% depending on the thickness being measured. It will measure up to 50 mill and it will read in 1/10 of a mill or in microns. It can also be calibrated to a given thickness so its accuracy will be greater within that range. It will allow both single and continuous readings. It will also be backlit with a cool blue light. It will be about the same physical size except for being 1/4 inch taller.
He's putting me on a list to keep me updated on their new FS502. If there are any introductory offers or quantity discounts or group buy possibilities, he'll let me know and I'll post the details here if anyone is interested in the FS502.