Transom Mount, DualBeam, 20/74 Degree, 200/50 kHz with built-in temperature
Compatible with: All HELIX 9 ,10, 12, 15 G1, G2, G2N, G3N, G4N Series, HELIX 5 XD GPS, 678c HD XD,688ci HD XD Combo, 859ci HD Combo, 859ci HD DI, 859ci HD XD Combo, 899ci HD SI, Combo, 931c, 931C DF, 959ci HD Combo, 959ci HD DI, 959ci HD XD Combo, 999ci HD SI, 1159ci HD Combo, 1159ci HD DI, 1159ci HD XD Combo, 1199ci HD to the maximum capability of the transducer