The Bio-Rad Electron Tubes P30PVN-01 PMT Module 2 OEM Photomultiplier Tube Assembly is a high-quality circuit board designed for use in various electronic applications. Made in the United States by Bio-Rad, this unit is a single photomultiplier tube assembly suitable for industrial and business settings. With its reliable brand reputation and specific model number, this product offers a dependable and efficient solution for those in need of a PMT module for their equipment or machinery.