... /RS232 4.easy to use Digital Compass (2-Axis magnetic azimuth sensor) Description:Our 2-axis digtial compass can measure magnetic field ... ,AIS,Radar,etc. Usage:1.Used with our autopilot series,2.apply to other marine navigation device, autopilot,Radar, AIS,etc ... -55°CProtection grade: IP54measuring range: 0-360°;Output: 4800/8/N/1 HDT HDM (meet the standard of IEC61162-1);output ...