MK2 Rudder Indicator w/2" RD. Analog Panel Meter, Chrome, 12vThe Ruddermaster indicates at a glance how far the rudder is from a straight-ahead position. As the steering wheel is turned, the sending unit communicates the angle of the rudder to the calibration box. The calibration box transmits the rudder&&';;s position to the meter.The Ruddermaster can be used both as a steering aid and to monitor auto pilot systems. Raritan offers several styles of meters for readout as well as some that are splash proof. Repeating units can also be installed should there be a need for a readout at a station and not the main control panel.Features: Useful aid for docking or close maneuvering Constant monitoring of rudder angle position from 0 to 45 degrees Ready for installation with all necessary components needed - meter, calibration box and sending unit MK2 model 2" Round Sprayproof (IP64) Backlit WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. Specifications: Instrument Function: Rudder Angle Box Dimensions: 3"H x 12"W x 12"L WT: 3.2 lbs UPC: 085462008917 Quick Guide (pdf)Brochure (pdf)