... , 200 KHz or 50 & 200 KHz (Dual Frequency) 2,Choice of Output Power: 1 KWor ... Frequency), specify when ordering2) Choice of Output Power: 1 KW or 2 KW, specify when ordering3) ... Output power50KHz, 200KHz or 50 & 200KHz (Dual Frequency), specify when ordering(12) Output Power1 KW or ... , Temperature alarm (sensor required)(16) Input/output dataInputOutputNMEA0183RMC, VTGSDDBT, SDDPT(17) Transducer1KW: TGM60 ...