If internal structures are present in your tanks, it is possible for the Portatank® to work as the ultrasound signal can still be reflected off your internal structures back to your sensor. Please get in touch with us to discuss your application if you feel you have a challenging application.More complicated structures such as transformers may be filled with internal structures, of various shapes and sizes which can cause the reflected sound waves to be inconsistent. In this instance, it is recommended to test on a section of your tank closer to the edges where you are able to obtain a clear pathway of ultrasound transmission through your tank. The Portatank® sensor is about 25mm / 1” wide and therefore you will