Trolling Motor Mount; 83/ 200 kHz Beam Frequency 455 kHz Operating Frequency; 20/ 60/ 180 Degree Down Beam Angle; 15 Feet Cable; With Built In Temperature Sensor/ Hose Clamp/ 15 Feet Cable; Compatible With HELIX 5 SI GPS HELIX 5 CHIRP SI GPS G2 HELIX 7 SI GPS HELIX 7 CHIRP SI GPS G2 HELIX 7 CHIRP SI GPS G2N HELIX 9 SI GPS 899CI HD SI 798ci HD SI 798ci SI 698ci HD SI 598ci HD SI 398C SI To The Maximum Capability Of The Unit. HELIX 12 CHIRP SI GPS HELIX 10/9 SI GPS HELIX 7 CHIRP MEGA SI GPS G3/G4 1199ci HD SI 1198c SI 1197c SI 999ci HD SI 998c SI 998c HD SI 899ci HD SI 898ci HD SI 898c SI To The Maximum Capabilities Of The Transducer