Garmin TM265LH Plastic Transom Mount Transducer w/Depth & Temp - 12-Pin
Best high-performance transducer for deep-water anglers seeking exceptional bottom detail.
Check out the Garmin TM265LH Plastic Transom Mount Transducer, which comes equipped with depth and temperature sensors and uses a 12-pin connector. This plastic transom mount transducer from Garmin is designed to perform excellently in deep water, offering superb detail of the bottom and the water column. It's noted as the best performing 1 kW transom mount transducer available. Key specifications include a maximum depth capability of 3,000 feet, operating frequencies of 42 to 65 kHz and 130 to 210 kHz, and a beamwidth that ranges from 16 to 25 degrees or 6 to 10 degrees. It is designed for mounting on transoms with a tilt angle between 3 and 21 degrees. The transducer utilizes Low/High CHIRP technology and provides standard imaging. Please note that speed information is not included with this unit. The kit includes installation instructions, which should be followed carefully to ensure proper setup and to avoid any damage to your boat. This unit is compatible with several Garmin devices, including GPSMAP® 7607xsv, 7608xsv, 7610xsv, 7612xsv, 7616xsv, and the GSD™ 25 Premium Sonar Module. Please be aware of the California Proposition 65 warning regarding potential exposure to chemicals.
$1329.36
Owner Satisfaction
4.7
/ 5
Category Rank
4
/ 167
#4 in Fish Finders
Price vs Category Average
+30%
Above average
Brand
Garmin
/ Garmin
Who it's for
- Boaters wanting simplified installation and streamlined cable management
- Anglers needing versatile imaging across varying water depths
- Deep-sea fishermen targeting species in extreme offshore depths
Who should skip it
- Speed-focused boaters requiring consistent tracking while cruising
- Budget-conscious hobbyists seeking basic sonar functionality
- Owners operating in rocky or debris-heavy environments
Performance breakdown
Deep Water Sensitivity
Delivers unmatched clarity and target separation at extreme depths.
CHIRP Resolution
Dual-band frequency range provides superior bottom and water column detail.
Power Output
The 1 kW output ensures a robust signal in challenging conditions.
Installation Versatility
Transom mounting requires precise alignment for optimal performance.
System Compatibility
Integrates seamlessly with high-end Garmin sonar modules and displays.
Sensor Integration
Reliable depth and temperature tracking in a single compact housing.
Key Specs
Brand
Garmin
Mounting Style
Transom
Weight
11.5 lb
Temperature
Yes
Speed Included
No
Chirp
Low/High
Cable Length (Feet)
33'
Pins
12
Features
- Performs well in deep water
- Provides exceptional bottom and water column detail
- Best performing 1 kW transom mount
- CHIRP technology (Low/High)
- Includes depth and temperature sensors
What customers say
This transducer excels in deep water, delivering exceptional clarity and target separation. Its dual band CHIRP technology provides accurate bottom readings, even at higher speeds, making it a valuable upgrade for serious anglers. Users appreciate its seamless integration with compatible Garmin units, offering wide coverage and precise structure identification. While the build quality is robust, the primary consideration is the investment. For those prioritizing depth, clarity, and reliability in challenging marine environments, the superior performance justifies the cost, making it a worthwhile addition for demanding fishing applications.
Know before you buy
No, this specific model does not include a speed sensor. It is equipped only with depth and temperature sensors.
This transducer is capable of reaching depths of up to 3,000 feet, making it an excellent choice for deep-water fishing.
The TM265LH is designed for transoms with a deadrise or tilt angle between 3 and 21 degrees. Please verify your boat's transom angle before installation to ensure proper performance.
It is compatible with the GSD 25 Premium Sonar Module and several GPSMAP xsv series units, including the 7607xsv, 7608xsv, 7610xsv, 7612xsv, and 7616xsv.
CHIRP technology provides superior target separation and clearer images by sweeping through a range of frequencies rather than using a single frequency. The Low/High configuration allows you to switch between deep-water penetration and high-resolution detail of the water column.
While the kit includes detailed installation instructions, proper placement on the transom is critical for sonar performance and preventing damage to your hull. If you are not comfortable drilling into your transom or routing cables, professional installation is advised.
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