The Paint Coating Thickness Meter is designed to non-destructively measure the thickness of coating and painting. The gauge is necessary for material surface treatment and is widely used in the manufacturing industry, metalworking industry, chemical industry and commodity inspection field, and can also work regularly in laboratory, workshop and outdoor. OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.