Application of Thickness Tester: Thickness Tester is for precise thickness measurement of films, sheets, and other materials. Features of Thickness Tester: 1. Wider measuring ... Keywords of Thickness Tester: Portable thickness Tester, digital thickness Tester, handheld thickness Tester, film tester, paper tester, paint thickness tester, ultrasonic thickness tester, thickness testers, thickness gage.