The AM-30 displays the rudder angle with reading between -90 and +90 degrees and is able to work with the most common sensors. It is possible to calibrate the sensor installed on board and set the zero (rudder centered).
It is possible to set alarms independently for starboard and port steering limits. When activated the meter will sound an alarm at 85 dB and the display will flash. It is also possible to select 5 backlight levels and all settings, calibrations and alarm values are saved in a non-volatile memory.