The Aquatrak Corporation offers a high quality liquid-level determination system intended for hydrographic, hydrologic, and industrial tank gauging applications. These gauges have earned a worldwide reputation as the most accurate and reliable instruments for long-term measurements of waves and sea states. Additional applications include boundary determination, drainage surveying, and maintenance of dam and chemical tank safety. For their use of unique patented ratiometric time comparisons of sequential sonic/pressure pulses in an environmentally protected small diameter tube, our systems are unmatched by other instruments. Aquatrak manufactures a robust and reliable sensor that easily interfaces with your DCP or PLC.