Used Perkin Elmer SPCM-AQR-16 Photon Counting Module

The SPCM-AQR-16 is a single-photon counting module manufactured by PerkinElmer (now Excelitas Technologies). It's a high-performance, low-noise detector designed for applications that require sensitive light detection, such as photon counting, luminescence, and fluorescence spectroscopy. The "AQR" in the model name refers to the "Avalanche Photodiode, Quasi-Random" technology used in the module.