... LJ18 conform to the requirement of CCS, output sign conform to the standard IEC61162-1(compatible NMEA018). ... -LJ18 conform to the requirement of CCS, output sign conform to the standard IEC61162-1(compatible NMEA018), ... , Auto pilot etc. highly integrated, small size, high precision, the defect rate does not exceed 1°, Show ... statement (compatible NMEA018) ---HDM,HDG,HDT. High quality Magnetic Compass