Sealey-Paint-Thickness-Gauge-Sealey-TA090-p-For-the-professional-bodyshop-or-valeting-bay-to-accurately-verify-the-thickness-of-paint-&-check-for-accident-damage-Uses-magnetic-induction-to-provide-accurate-&-consistent-readings-to-0-1-m-Suitable-for-steel-&-aluminium-panels-Easy-to-calibrate-with-test-plates-&-precision-standards-USB (Universal Serial Bus)-Interface-for-downloading-data-to-PC-Powered-by-2-x-1-5V-batteries-supplied-p-Sealey-TA090-Paint-Thickness-Gauge