The document presents a sole source justification for the acquisition of Titley Ranger bat acoustic detectors by the U.S. Fish and Wildlife Service (USFWS) for an interagency agreement with the Department of Defense. It highlights the urgent need for compatible equipment that maintains continuity of scientific data from previous deployments. The Titley units are chosen due to their alignment with existing hardware and software used by USFWS and its collaborator, Clemson University. The justification explains that other manufacturers, such as Wildlife Acoustics and Petterspm, were explored but deemed unsuitable due to compatibility issues and higher costs. The Titley Ranger, priced at $999, features essential specifications like integrated GPS and modular capabilities crucial for long-term monitoring of bat species, particularly within the Myotis genus. The document also includes endorsements from the program/project officer and the contracting officer, certifying that the procurement follows government regulations on sole source acquisitions. This file serves to secure approval for the urgent purchase of specialized equipment necessary for wildlife conservation efforts, emphasizing the importance of accurate data collection in protected species monitoring.