The T4 is an advanced multi-purpose ultrasonic thickness gauge. Easy to operate, with a very clear color display screen. Pulse-echo (P-E) standard and echo-echo (E-E) penetrating coatings are available in two measurement modes. And you can perform two different forms of scanning, A and B. It has automatic zero return correction of the probe and automatic identification capability of the probe. Measurement range P-E: 0.65 ~ 400.0mm, E-E: 3.00 ~ 25.0mm. Equipped with a standard 5 MHz transducer. A variety of transducers are available for purchase. The resolution is 0.01 mm. It can remember 10,000 readings in 100 files. Data can be accessed directly from the USB interface. Matches a Windows 32 or 64 bit operating system. Gains, gates, etc. can be adjusted automatically or manually. Support multiple languages. Calibration can be traced back to ASTM E0797-05.