Is A Cheap Sonic Tester Worth It?

Let's see how accurate a cheap ultrasonic thickness gauge is. ~ Earl #nondestructivetesting #ultrasonic #cheap CAMWAY Digital Ultrasonic Thickness Gauge Meter https://amzn.to/3QQUwsF Wintact Digital Ultrasonic Thickness Gauge Tester Meter https://amzn.to/45dbGEV Disclosure: The products listed above are listed using affiliate links. If you use these links, I receive a small percentage of your purchase value. It does not cost you anything extra and it helps to fund my channel. Thank You