Is it a coincidence? Probably not. In low-level device drivers, "R" often denotes a or a Read command. "SW Finder 52" could effectively be a diagnostic label for a routine that "Finds" the device by reading a specific memory register (Register 82, perhaps, or Channel 52). It is the digital equivalent of a sonar ping—the software shouting into the void and waiting for the hardware to shout back.
Do not buy this tool if:
Use a lint-free wipe and isopropyl alcohol to clean the M2/M3 threading on both the probe body and the stylus. Any grit will cause axial misalignment. sw finder 52 top