Garmin echo 300c Color Dual Beam Fishfinder w/TM TransducerRemanufactured Frequency 200/77; Transducer Type Transom Mount; Waterproof Rating Waterproof; Watts RMS - Max 300/2400 Included Transducer NONE Resolution (VxH) 320 x 240 Screen Size 3.5" Speed/Temp NONE