Our system uses a unique Tradebe patented sonar technology to profile crude oil tank sludges to a very high level of accuracy. During each 360° sweep, 240,000 soundings are developed and directed to our proprietary software for analysis, improving overall accuracy. The survey is carried out in one day and the process is performed while the tank remains full of oil. The SPOT system has many advantages over manual dipping methods including safety, accuracy, practicality and cost.