The Krautkramer Branson CL304 Portable Ultrasonic Thickness Gauge operates from battery or AC power for portable or bench top use. It offer fast, accurate thickness measurements without cutting, disassembling or destroying your parts. Test most metals, plastics, glass and ceramic materials while shortening inspection time and reducing cost. The CL304 offers several advanced features such as the special menu setups. Special menus allows the use of non-standard transducers (e.g. bubbler or immersion) that require customized settings to optimize instrument performance. From the instruments keypad, the operator can adjust 12 parameters including gain, various delays, PRF and signal phase. An oscilloscope can be connected to the instrument's rear panel RF connector and system timing connector to assist in setup and to verify the accuracy of the measurement.