2D Traditional CHIRP & Down View Sonar · United States · all prices

No maker publishes sales figures. These lists are built from best-seller and most-reviewed proxies (retailer rankings, review volume, awards) over the last five years — the source is shown under each entry.

1. Humminbird MEGA Down Imaging+ Transducer (XM 9 HW MDI T) — $299
   1.2MHz MEGA frequency provides photographic clarity of bottom cover down to 400 feet.
2. Garmin GT56UHD-TM Ultra High-Definition Transducer — $449
   High-wide CHIRP traditional sonar with 800kHz/455kHz ClearVü down imaging; exceptional bottom definition.
3. Lowrance Active Imaging HD 3-in-1 Transducer — $399
   High-frequency CHIRP with 1.2MHz DownScan imaging; FishReveal highlights targets on structure.
4. Airmar TM185M High-Performance Chirp Transducer — $899
   1kW single-band medium CHIRP (85-135kHz); unparalleled deep-water target separation down to 1,500ft.
5. Raymarine HV-100 HyperVision All-in-One Transducer — $349
   1.2MHz HyperVision CHIRP DownVision delivers near-photographic image quality of underwater terrain.
6. Garmin GT54UHD-TM All-In-One Transducer — $299
   Ultra High-Definition ClearVü provides crisp images of structure and fish below your boat.
7. Airmar TM150M Medium CHIRP Transducer — $329
   300W medium CHIRP (95-155kHz); wide beam covers large area under boat with pristine arc separation.
8. Humminbird Dual Spectrum CHIRP Transducer — $129
   Offers Wide Beam for maximum coverage and Narrow Beam for maximizing detail and target separation.
9. Lowrance HDI Skimmer 83/200 & 455/800kHz — $149
   Proven hybrid dual-imaging transducer combining classic broadband CHIRP with high-res DownScan.
10. Furuno 525STID-PWD Plastic Transom Mount Transducer — $189
    High sensitivity 50/200kHz dual frequency with built-in fast-response water temperature sensor.