The roofing industry has requested 2.8 p.s.i. for the thickness gauging of its shingles. E.J. Cady & Company has worked closely with industry professionals to develop the DW14 Model which now delivers this pressure in a simple to use analog (dial) instrument.
The DW14 Model analog, bench micrometer is available for use at the desk or laboratory for measuring the thickness of shingle samples.