I do lots of moisture testing and the black box thingy sounds odd. Must be a digital concrete meter. Theres the dome test(Calcium chloride) and the insitu - relative humidity test in which holes are drilled into the slab. Being digital I doubt they can come up with lbs of moisture as a calcium chloride test does. The only two tests they say is a viable test on the spec sheet is the CaCl and insitu test. Heres a link to the spec sheet, note all the qualifications ie; slab density, bond breakers and profile. If you miss one of those your done for.
http://wftaylor.com/pdf_manual/MS%20Plu ... rranty.pdfQuote:
This warranty covers the Taylor MS Plus Advance Wood Flooring Adhesive’s ability to reduce moisture vapor
emissions at the time of installation, up to 10 lbs. per 1,000 square feet per 24 hours, as determined by an
anhydrous calcium chloride test (to ASTM F-1869-98 test method), and 85% relative humidity tested according to
ASTM F-2170 test method, down to the safe range for installation as stated by the flooring manufacturer. This
warranty is for a period of ten (10) years from date of installation.