SI-TEX SRA-1 Rudder Indicator f/Use w/SP70 80 [SRA-1]SRA 1 Rudder Angle Indicator Displays precision analog position reading. A quick, positive, visual indication of rudder angle can be very important when docking or maneuvering a boat in tight quarters. It can save not only your gel coat but your pride. The SI TEX SRA 1 Rudder Angle Indicator gives you a precise look at exactly where your rudder is positioned. An easy to read 3 1 8" diameter analog faceplate displays, in high resolution, the rudder