echo 551C Fishfinder No Transducer - Quick-Release Tilt/Swivel Mount

Echo 551c. The garmin echo 551c is a premier fishfinder with one of the brightest 5-inch hi-res vga color displays on the water. Like all garmin fishfinders, it's powerfully simple to use. Exclusive advanced hd-id sonar delivers precise fish arc presentation, structure detail, and bottom contours from 4,000w peak-to-peak power down to 1,900 feet maximum depth. Smooth scaling depth range adjustments provide uninterrupted screen imagery as depth changes. Also includes sonar history rewind. Supports 50/200khz and 77/200khz transducers (not included) for narrow and deep or wide and shallow viewing cone angles to optimize performance in salt or fresh water. Includes a quick-release tilt/swivel mount. Features: excellent target separation and bottom tracking. Exclusive garmin advanced hd-id sonar. Display: 5-inch diagonal / 256 colors (64k capable). Resolution: 640 x 480 vga. Supports 50/200khz and 77/200khz transducers (not included). Smooth scaling depth range adjustments. Sonar history rewind. Includes quick-release tilt/swivel mount. Transmit power (rms)/(peak-to-peak): 500w/ 4,000w. Includes water surface temperature. Maximum depth: 1900 ft. 10v - 28v input. ** if using an 8-pin transducer, a 8-pin to 4-pin adapter cable is required **. Manufacturer: garmin. Marine navigation & equipment-fishfinder/sounder - colorfrequency = 50/77/200. Included transducer = none. Resolution (vxh) = 480 x 640. Screen size = 5". Speed/temp = none. Transducer type = none. Waterproof rating = none. Watts rms - max = 500w.