NOTE: 1.Please note that the YNB-100 can work on iron/aluminum/car steel substrates only.It can't work on stainless steel and other material substrates. 2.The YNB-100 resolution is 0.05mm, and error range is +-0.1mm.It is good to check the car is repainted or not. It shows 0.1mm when the buyer checking on his car, which means it is original paint, not repainted. If repainted, the result will be over than 0.25mm. 3.There is protective film on the screen,you can remove it before using it. YNB-100 Introduction: Yunombo YNB-100 Digital Car Paint Thickness Meter Thickness Tester Coating Thickness Gauge with English Russia Manual This product is a portable coating thickness gauge, which can measure the thickness of non-metallic coating(such as paint, film, etc.) on metal substrate quickly, nondestructively, and accurately. It is mainly used to measure the thickness of the vehicle's surface paint and other coating measurement. !!! Please contact us if you require a larger quantity we will reply in 24 hours. !!! Shipping 1.If you need to buy in bulk, please contact, we will reply in 24 hours. 2.We are always working hard to ensure your package arrives as soon as possible. Please understand that some factors like weather, high postal traffic, and the performance of shipping companies are outside of our control. 3.Usually product Reaches after about 12-45 business days depending on destination. If you have not received your shipment within 45 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Refund or resend product will be offered if item still not received. 4.We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important. We ask you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns. It is impossible to address issues if we do not know about them! THANK YOU :)