Is ideal for boats with fiberglass hulls looking for a fast and easy installation, high-speed performance. Comes with an innovative flange that installs on the inside of the boat's hull using quick-setting marine epoxy. No cutting or drilling is required. the transducer cap is dialed-in and locked in place for a straight-down beam and maximum echo returns. There is also no water temperature sensor on the P79 transducer.Raymarine offers the P79 transducer is multiple configurations to support traditional analog sailing instruments, NMEA200 Smart devices, as well as dual-frequency (50/200 kHz) fishfinders. Push-on 1/8" female spade connectorsFor i40, i50, iTC-5 & Legacy instruments