Introducing the cutting-edge free running single photon detector from Beijing Rofea Optoelectronics Co., Ltd., China's premier manufacturer, supplier, and factory of high-quality optoelectronic products. Our free running single photon detector is designed to meet the demands of advanced photon counting applications, offering unrivaled performance and sensitivity. The detector operates with ultra-low noise and high detection efficiency, making it ideal for a wide range of scientific and industrial applications such as quantum communication, quantum cryptography, fluorescence, and Raman spectroscopy. Built with state-of-the-art technology, our detector delivers exceptional timing resolution and counts rates, providing researchers and engineers with the precision and reliability they need for their experiments and projects. Backed by our extensive expertise and commitment to excellence, Beijing Rofea Optoelectronics Co., Ltd. is dedicated to delivering innovative solutions that push the boundaries of photon detection. Trust in our free running single photon detector to elevate your work to new heights of performance and accuracy.