Discover the **Lightweight Portable Ultrasonic Thickness Gauge** with 4Hz, 8Hz, and 16Hz measurement frequencies. Perfect for industrial corrosion monitoring and quality control, this gauge offers high accuracy with resolutions of 0.1mm, 0.01mm, and 0.001mm. Ideal for metal and non-metal materials, it features a 3.5-inch color LCD display and multiple detection modes.