How to read Device Serial Number & take Current date attendance log file

[ksarulmozhi]

1 . When i read data from device it take 5 mins to receival data, windows 11 OS

2. I need help how to read device serial number.

3. how to take log between date.

i using from from and to date using code.

DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");

	Date fromdate = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss").parse("16/11/2021 00:00:00");
	Date todate = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss").parse("20/11/2021 22:59:59");
	Long fd=fromdate.getTime();
	Long td=todate.getTime();
	

	AttendanceRecordsStatement stmt2 = aTerminal.readAttendanceRecordsFrom(fd, td);

Please help.
Thank you.