Transducers
A good transducer is the heart and soul of your fishfinder! Incorporating some of the latest transducer technology, such as alternating or spectrum scanning transmitters or the use of 1000-watt in-hull or transom mount units, will allow incredible depth finder performance.
There are 4 main transducer models available, defined by how they are mounted on your vessel: Thru-Hull, Shoot-thru-hull (most often used for fiberglass hulls), transom-mount (best suited to trailerable size vessels) and portable transducers. The best transducer for you will depend a lot on your budget, boat type, shape and hull material and the fishing conditions it will be used in. Ideally a transducer needs to 'look' directly down and be mounted so that clean, turbulence-free water passes over its face.
Which is the Best Transducer for My Boat?
Hull Material Considerations:
Hull Material | Recommended Transducer Type |
Aluminium Hull (Tinny) | Transom Mount or Plastic Thru Hull |
Wooden Hull | Transom Mount or Bronze Thru Hull |
Fiberglass Hull | Transom Mount, Thru Hull (Bronze or plastic), Shoot Thru Hull/In-Hull |
Transducer Do's and Dont's:
- Plastic housings are recommended for fibreglass or metal hulls only. Never mount a plastic thru-hull housing in a wooden hull since swelling of the wood may overstress the plastic causing it to fracture.
- Bronze housings are recommended for fibreglass or wood hulls only. Never mount a bronze housing in a metal hull as electrolysis will occur.
- Never install a thru-hull transducer & leave the boat in the water unchecked for several days.
- Never use solvents on the transducer's face or the plastic housing.
- Always site the transducer so that external noise is minimised. Possible sources include air bubbles, propellers, generators, other echosounders.
- Transducer surfaces that can be painted must use a water based antifouling.
With the range of transducers available, selection can appear confusing and with the next generation of Lowrance Transducers and Airmar Broadband/CHIRP transducers arriving in-store – the definition will astound you! So speak with the marine electronics
Humminbird XNT 9 20T Transducer
RRP: $399.90
NOW: $356.50
Humminbird Transom 200/50kHz ION ONX
RRP: $439.90
NOW: $392.50
GARMIN GTM20 DownVu 8 Pin 77/200kHz T/M Transducer
RRP: $175.00
NOW: $166.50
Airmar TM150M Transom Transducer
From: RRP $401.50
$328.00
TM265LH Dual Frequency Chirp Transom Transducer
From: RRP $2,299.00
$2,024.50
Garmin 200/50Khz T/M Standard Biducer - 8 Pin
RRP: $149.00
NOW: $128.50
Garmin GT51 Series Transducers
From: RRP $999.00
$899.00
Garmin GPSMAP551-556 6 Pin Transom Mount Transducer
RRP: $125.00
NOW: $121.50
Simrad HDI DownScan T/M Skimmer Transducer - Med/High 455/800Khz - 9 Pin Black Plug
$200.50Airmar TM185H-W S/S T/M xSonic Transducer - inc temp & 9pin black plug
RRP: $1,799.00
NOW: $1,684.00
Raymarine TM258 T/M Sonar Transducer
RRP: $1,529.00
NOW: $1,346.50
Raymarine TM265LM Dual Frequency Chirp Transom Transducer
RRP: $2,499.00
NOW: $2,200.50
Garmin TM275LH-W 1kw Depth/ Temp CHIRP
RRP: $3,199.00
NOW: $2,716.00
TM54 T/M T/ducer - inc bracket
RRP: $3,960.00
NOW: $3,762.00
Furuno TM185H-W T/M Transducer - inc temp & 10pin black plug
$2,178.00Garmin Panoptix LiveScope
RRP: $1,999.00
NOW: $1,799.00
Lowrance Simrad LiveSight Transducer With Mounts
RRP: $1,699.01
NOW: $1,673.00
Furuno TM185M T/M Transducer - inc temp & 10pin black plug
$1,815.00Humminbird SOLIX Dual Spectrum CHIRP Temperature Transducer
RRP: $389.90
NOW: $362.65
Cannon DigiTroll Transducer
RRP: $549.00
NOW: $522.00