Sm_20.rar Review
: It can contain calibration data for SM-20 series digital sound level meters or soil moisture sensors. How to verify the contents
Because file names like this are often generic, the "solid content" of the archive depends entirely on the specific device it belongs to. The most frequent associations for this file name include: SM_20.rar
: Right-click the file and check "Properties" or use a tool like WinRAR or 7-Zip to "Open Archive" (without extracting) to see the list of files inside. : It can contain calibration data for SM-20