IMO Wheelmarked Single channel Dual frequency echo sounder from Skipper
One full system consist of:
ESN100-SA Touch Display
JB50E1-SA Electronic Unit
Multiple Transducer options
Bottom housings:
Functions:
Frequency: 200 kHz 50 kHz selectable. Dual frequency transducer may be used, but only one frequency may be used.
Range: selectable from 0 - 1000m
Display: 9 inch touch display
Power supply DC: Control Unit: 10-32V, Transciever Unit: 21-36V
Mounting dimensions: 242 x 158mm Display Unit, 215,8 x 163,8 mm JB50E1-SA