The TKG250 is a Digital Ultrasonic Thickness Gauge/Datalogger with Color Waveform function. Extech offers Thickness Gauges designed in compact, handheld, rugged housing ideal for field use. The ultrasonic technology allows for non-destructive thickness measurements for primarily steel structures. Datalogs up to 100K readings and can be exported to Excel® for further analysis. Complete with protective holster, 2oz bottle of coolant, 2 AA batteries, 5MHz Transducer, hard carrying case, USB cable and Exporter software.