The GM35, end-window, Geiger-Mueller detector will detect alpha, beta, and gamma, and x-ray radiation (or combinations thereof). Its design offers the flexibility to operate as a portable or benchtop device. The ST360 seamlessly interfaces with computers via USB through Spectrum Techniques' STU software. It accommodates both GM and scintillator-type detectors, featuring precise high-voltage adjustment controls. can be used to measure the resolving time and plateau values of the GM detector. It can also determine the statistical distribution of background and isotope counts.