Handheld ultrasonic thickness gauge basic model with selectable sound velocity for various materials.Features• Basic model ultrasonic wall thickness gauge• Suitable for various materials such as steel, stainless steel, aluminium, glass, polystyrene, polyethylene• Standard 5.0MHz transducer included, optional transducers 6.0MHz, 5.0MHz high temperature up to 300°C• Sound velocity range 500 up to 9000 m/s• Clear 4-Digit LCD display with settings• Display resolution at 0.1mm / 0.001"• Fast calibration on integrated standard block of 5mm (5920m/s)