Transducers

TRANSDUCERS

Sensing through the water even in harsh conditions  

The best compatible tranducers

For SEIWA echosounder and fish finders


SEIWA echosounders and fishfinders* are compatible with a wide range of transducers for different uses: traditional CW as well as CHIRP ready transducers. We have selected for you the best transducers from the top manufacturers worldwide

Choose from AIRMAR, Radarsonic or the new TWS transducers.
 

*SW BBFF CHIRP,  SWx 900CW, SWx1200CW

 

Download the list of SEIWA compatible transducers 

NEW: TWS Transducers

Finally an alternative:
Excellent Value for Money


SEIWA presents TWS transducers, a new range of powerful transducers from CW to Low, Medium, and High CHIRP with excellent value for money.  
 

  • Finally the alternative you were looking for to expensive transducers: great quality at a fraction of the price!

  • SEIWA echosounder automatically selects the power output and configures the parameters to suit the TWS transducer model. 

  • TWS transducers are available for purchase in Europe from the SEIWA network of resellers.

 

 Ask for a quotation

TWS Tranducers

 A complete range of possibilites

LOW FREQUENCY

LOW FREQUENCY

TWS Transducer CB131L300


TWS Transducer CB131L300

Sonar type CHIRP ready
Frequency Low  40 -75 kHz
Power 300W 
Mounting Thru Hull with fairings
Material Bronze 



CODE: CB131L300

  

BT70L300


TWS Transducer BT70L300

Sonar type CHIRP ready
Frequency Low  40 -75 kHz
Power 300W 
Mounting Thru Hull 
Material Bronze 



CODE: BT70L300

  

ST70L300


TWS Transducer ST70L300

Sonar type CHIRP
Frequency Low 40 - 75 kHz
Power 300W 
Mounting Thru Hull
Material Stainless steel 



CODE: 
ST70L300

  

BT87L1KW


TWS Transducer BT87L1KW

Sonar type CHIRP
Frequency Low 40 -75 kHz
Power 1 KW 
Mounting Thru Hull
Material Bronze



CODE: 
BT87L1KW

  

MEDIUM FREQUENCY

 MEDIUM FREQUENCY

ST70MB300


TWS Transducer ST70MB300


Sonar type CHIRP
Frequency Medium 95 - 155 kHz
Power 300W 
Mounting Thru Hull
Material Stainless steel 



CODE: 
ST70MB300

  

TWS Transducer BT70MB300


TWS Transducer BT70MB300

Sonar type CHIRP ready
Frequency Medium  95 -155 kHz
Power 300W 
Mounting Thru Hull 
Material Bronze 



CODE: BT70MB300

  

TWS Transducer CB131MB300


TWS Transducer CB131MB300

Sonar type CHIRP ready
Frequency Medium 95 -155 kHz
Power 300W 
Mounting Thru Hull with fairings
Material Bronze 



CODE: CB131MB300

  

WS Transducer CB131MA600


TWS Transducer CB131MA600

Sonar type CHIRP ready
Frequency Medium 80 -130 kHz
Power 600W 
Mounting Thru Hull with fairings
Material Bronze 



CODE: CB131MA600

  

ST70MA600


TWS Transducer ST70MA600


Sonar type CHIRP
Frequency Medium 80 - 130 kHz
Power 600W 
Mounting Thru Hull
Material Stainless steel 



CODE: 
ST70MA600

  

TWS Transducer BT70MA600


TWS Transducer BT70MA600

Sonar type CHIRP ready
Frequency Medium  80 - 130 kHz
Power 600W 
Mounting Thru Hull 
Material Bronze 



CODE: BT70MA600

  

BT87M1KW


TWS Transducer BT87M1KW


Sonar type CHIRP
Frequency Medium 85 -135 kHz
Power 1 KW 
Mounting Thru Hull
Material Bronze



CODE: 
BT87H1KW

  

TWS Transducer CB131M1KW


TWS Transducer CB131M1KW

Sonar type CHIRP ready
Frequency Medium  85 - 135 kHz
Power 1 KW 
Mounting Thru Hull with fairings
Material Bronze 



CODE: CB131M1KW

  

High frequency

HIGH FREQUENCY

TWS Transducer BT70H600


TWS Transducer BT70H600

Sonar type CHIRP ready
Frequency High  4130 - 210 kHz
Power 600W 
Mounting Thru Hull 
Material Bronze 



CODE: BT70H600

  

TWS Transducer CB131H600


TWS Transducer CB131H600

Sonar type CHIRP ready
Frequency High  130 -210 kHz
Power 600W 
Mounting Thru Hull with fairings
Material Bronze 



CODE: CB131H600

  

ST70H600


TWS Transducer ST70H600


Sonar type CHIRP
Frequency High 130 - 210 kHz
Power 600W 
Mounting Thru Hull
Material Stainless steel 



CODE: 
ST70H600

  

TWS Transducer CB131H1KW


TWS Transducer CB131H1KW

Sonar type CHIRP ready
Frequency High  130 - 210 kHz
Power 1 KW 
Mounting Thru Hull with fairings
Material Bronze 



CODE: CB131H1KW

  

BT87H1KW


TWS Transducer BT87H1KW


Sonar type CHIRP
Frequency High 130 - 210 kHz
Power 1 KW 
Mounting Thru Hull
Material Bronze



CODE: 
BT87H1KW

  

TWS Transducer CB131D600


TWS Transducer CB131D600

Sonar type CW
Frequency 50 -200 kHz
Power 600W 
Mounting Thru Hull with fairings
Material Bronze 



CODE: CB131D600

  

BT70D600


TWS Transducer BT70D600

Sonar type CW
Frequency 50 -200 kHz
Power 600W 
Mounting Thru Hull 
Material Bronze 



CODE: BT70D600

  

ST70D600


TWS Transducer ST70D600


Sonar type CW
Frequency 50 - 200 kHz
Power 600W 
Mounting Thru Hull
Material Stainless steel 



CODE: 
ST70D600

  

Ask for a quotation

Interested in the new TWS Tranducers? Ask for a quotation


TWS Tranducers quotation

How to choose the right tranducer for your activity

5 things you should look at

Sonar type

1.

CW or CHIRP

Which is your sonar type?

 Transducers are available for traditional CW (continuous wave) sonar as well as new generation CHIRP sonar, offering 5 times greater detail and resolution.

Frequency

2.

Frequency

What is your activity?

Choose low (>80 kHz), medium (80 - 160kHz), or high frequency (150 - 250 kHz)  according to your type of activity. The higher the frequency the best detail for shallow water., the lower the frequency, the better depth performance in deep water

Power

3.

Power

Where do you navigate?

Choose the energy you can put into the water column, from 300W to 1KW, for different depth ranges.

Mounting

4.

Mounting

Boat Performance or Sonar Performance?

Choose Thru Hull or  Thru-Hull with fairing depending on how important boat performance or sonar performance is to you. Thru Hull mounting gives the best boat performance reducing friction to the minimun, while Thru-Hull with fairing offers the most accurate sonar performance

Material

5.

Tranducer's material

The right match for your hull

Bronze or stainless steel transducers?  It is not possible to say which is the best material ever. This depends on the hull material. Stainless steel transducers are recommended for metal hulls, and bronze transducers for wooden hulls; either type may be installed in a fiberglass hull.   

Tranducers' mounting options

Find the best option for performance, cost and complexity.

Thru Hull

 

Thru Hull 

High speed and minimum drag


A thru-hull transducer offers excellent performance even at high speeds, with minimum drag. To install a thru-hull transducer, a hole must be drilled in the hull (fiberglass, metal, or wooden hull). The boat must therefore be on land for installation.

Thru hull with fairings

 

Thru Hull with fairings

Accurate sonar performance


These transducers are mounted on a stem that passes through a hole drilled in any fiberglass, metal, or wooden hull. An insulating fairing block is required for installation on a metal hull. The insulating fairing block positions the device parallel to the waterline for greater depth sounder accuracy. Thru-hull transducers with a fairing block tend to offer the most reliable and accurate sonar performance. 

Transducers Intallation

How to set up your SEIWA echosounder / fishfinder system

SWx 900cw + Tranducer

 

SWx 900CW + Transducer


The tranducer is directly connected to the plotter's 8 pin connector.

Refer to SWx 900 Warning and Installation guide

SWx 1200cw + Transducer

 

SWx 1200CW + Transducer


The tranducer is directly connected to the plotter's 8 pin connector.

Refer to SWx 1200 Warning and Installation guide

EXPLORER 23 + Transducer

 

EXPLORER 23 + SW BBFF CHIRP + Transducer


EXPLORER 23 is connected to SW BBFF CHIRP through NMEA 2000 network, and the transducer is connected to the fishfinder's 8 pin connector.

Refer to EXPLORER 23  and SW BBFF CHIRP 
Warning and Installation guide

SW BBFF CHIRP + Transducer

 

Any plotter + SW BBFF CHIRP  + Transducer


The plotter is connected to SW BBFF CHIRP through NMEA 2000 network, and the transducer is connected to the fishfinder's 8 pin connector.

Refer to SW BBFF CHIRP Warning and Installation guide

help

 Need help in finding the right solution for you ?


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