"Furuno 235DST-PSE Nylon TH w/ Retractable Insert Brand New Includes Two Years Warranty, The Furuno 235DST-PSE is a plastic Thru-Hull depth, speed and temperature sensor
This element operates at a frequence of 235kHz so there is no interference with your 50/200 kHz fishfinder transducer. The 235DST-PSE is an Airmar P17 housing style transducer. The fan shaped transducer beam help's in no performance loss on hulls with up to a 22° deadrise. It can measure stable and accurate speed from 1 to 60 MPH. It responses quickly to changes in water temperature. 235DST-PSE Features: Product # 235DST-PSE, Plastic Through Hull Transducer, 200 Watts Power, Frequency 235kHz, Provides Depth, Speed & Temp, Flush Mounted on a Hull w/ up to a 22° Deadrise, 10 Meter Cable w/ 7-Pin Connector"