hwDevGisCheckCode 1.3.6.1.4.1.2011.6.3.1.40

The check code of the device GPS information. The length of check code is 4. The characters can be 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E and F. The zero-length string indicates invalid area check code.