Dust level (the first X)0: no protection1: to prevent large solid intrusion2: to prevent the invasion of solid medium size3: prevent small solid into intrusion4: prevent solid objects greater than the entry of 1mm5: to prevent the accumulation of harmful dust6: completely prevent dust enteringWaterproof grade (second X)0: no protection1: the drops into the shell had no effect2: when the shell is tilted 15 degrees, water droplets drops into the shell had no effect3: water or rain from 60 degrees corner to the housing no effect4: liquid from any direction poured into the shell did not damage effect5: rinse with water without any harm6: can be used for the cabin environment7: in a short time immersion resistant (1m)8: in the long time of soaking under certain pressureShell protection grade (IP code) standards:1) by IEC (INTERNATIONAL ELECTROTECHNICAL COMMISSION) the IEC: International Electrotechnical Commission Standard IEC 529 – 598; 2) GB GB 700 - 86; 3) GB 4208.Shell protection grade (IP code) laboratory:0���]�б��o1����ֹ��Ĺ��w����2����ֹ�еȴ�С�Ĺ��w����3����ֹС���w�M������4����ֹ���w����1mm�Ĺ��w�M��5����ֹ�к��ķۉm�ѷe6����ȫ��ֹ�ۉm�M���ˮ�ȼ�(�ڶ���X��ʾ)0���]�б��o1��ˮ�ε��뵽�⚤�oӰ�2�����⚤�Aб��15�ȕr��ˮ�ε��뵽�⚤�oӰ�3��ˮ����ˮ��60�Ƚ��䵽�⚤�ϟoӰ�4��Һ�w���κη��򝊵��⚤�]�Ђ���Ӱ�5����ˮ�_ϴ�o�κ΂���6�������ڴ�œ�ȵĭh��7�����ڶ̕r�g���ͽ�ˮ��1m��8����һ���������L�r�g��ˮ�⚤���o�ȼ���IP���a���Ę˜��У�1����IEC��INTERNATIONAL ELECTROTECHNICAL COMMISSION������݇��H���o�ͷ�ˮԇ�˜ʣ����H늹�ί�T���˜�IEC 529 – 598��2������GB 700 – 86��3��GB 4208�ȡ��⚤���o�ȼ���IP���a������ң�