The ML Series Precision Micromeasurement System uses very small sensor (VSS) technology to fit into those applications where ultrasonic sensors could not previously be used. The smaller size of the sensor enables the ML system to be used with autosamplers, robotic samplers, titration equipment, microsampling devices and test tube racks. The ML system performs high speed, multipoint, non-contact ultrasonic measurements with an accuracy of ± 0.0075 in (± 0.19 mm). Many operational settings are programmable through a serial port, allowing for application specific customization. A choice of 4-20 mA, 010 VDC or RS-232 output is available. Ultrasound has a number of advantages over other systems available since measurements are not affected by liquid color (or lack of color) and there is no physical contact with the liquid so no disturbance of the sample occurs