OMNTEC sensors are most known for their ease of installation, reliability, cost-effectiveness and remote testability. Electro-optic technology provides accurate and continuous monitoring. Ruggedly constructed, these solid-state sensors are UL listed and Third-party certified. A distinguishing feature of OMNTEC sensors is that they can be tested remotely with the press of a single button.The PDWF product distinguishing sensor was designed to fit into the annular space of dry double-wall fiberglass tanks. With its slim, compact shape and flexible snake-like shaft, the PDWF can easily be installed and removed from grade.