DUAL AXIS SPEED SONAR MODEL JLN 550 (DISCONTINUED)Large LED display for easy read outDual Frequency for Water Speed & Bottom Speed detectionAccurate measuring and stable indicationGate Valve type transducer available Newer Post (NEW) JRC VHF RADIO – JHS-800S Older Post SINGLE AXIS SPEED LOG MODEL JLN-205MK2 (DISCONTINUED)