Photon counter is mainly used in biology, medicine, chemistry and other fields, mainly involving weak light detection, precision measurement. EBY-M2011 photon counting detector developed by our company is mainly composed of photomultiplier tube, high voltage power supply module and signal forming circuit. Before leaving the factory, this product has been tested in all aspects, switch on the power supply, the output end and the counting unit can be connected to use. Product performance can be customized according to customer demand.