235 kHz frequency prevents mutual interference with other echosounders on the vessel 6m (20') NMEA 2000 cableDevicenet connectorNo holes to drillInstallation can be done while the boat is in the waterRecommended for solid fiberglass hullsEpoxies to aluminum hulls under 0.38 mm (0.150") thickEasily adapts to deadrise angles up to 22° Compatible with: ST40/ST60/i40/i50 on SeaTalk1 and i50 on STng - operate as repeaters only (can't calibrate from these instruments) Note: a SeaTalk to SeaTalkng converter may be required ST70, ST70+ and i70 on the SeaTalkng network are required for calibration