Dogyu Harry Pen Coating Thickness Gauge #01130

Patented. • Simple film thickness measuring pen for urethane waterproofing and similar materials. A simple film thickness gauge that uses a needle. • Push in the needle and read the film thickness on the scale on the side. * This product is made for simple on-site measurement and measures in millimeter units. * Measurement is not possible if the needle tip is damaged. Replace a damaged needle before use. * Measure before applying the top coat. Include the thickness of any sheet or mat in the measured film thickness.