This paint thickness gauge from Sealey is foruse in a professional bodyshop or valeting bay to accurately verify the thickness of paint and check for accidental damage. This tool uses magnetic induction to provide accurate and consistent readings to 0.1µm and is suitable for both steel and aluminium panels. This unit is easy to calibrate with test plates and precision standards and its USB interface is ideal for downloading data to a PC. Powered by two 1.5V batteries (supplied)