Best Offshore Fish Finder
Basic Info Product Description Model NO.: Best offshore fish finder FP621S Trademark: SAIYANG Origin: Nantong, Jiangsu, China 480mm*640mm: 6 Inchs Specification: CCS ISO9001 CE 6" color display best offshore fish finder 300 W/300---600W (RMS) transmit power Depths to 600 ft Beam width to...
Product Introduction
Model FP621S – 6-Inch Color Offshore Fish Finder with Dual-Frequency Sonar (CCS/ISO9001/CE)
For offshore anglers and semi-commercial fishing vessels operating in deeper waters, this 6-inch color offshore fish finder delivers 300-600W RMS transmit power with depth capability to 600 feet. The dual-frequency transducer (50kHz, 200kHz, or combined 50/200kHz) allows you to search wide areas with 120-degree beam width or target specific structures with narrower focus. Certified with CCS, ISO9001, and CE for reliable marine use.
Key Features for Offshore Performance
600-foot depth capability – Penetrates deeper waters where coastal fish finders lose bottom lock. Suitable for offshore reefs, wrecks, and canyon fishing.
Dual-frequency sonar (50/200kHz) – Use 50kHz with 120-degree beam width for wide area searching to locate schools. Switch to 200kHz for detailed bottom contour and fish arch separation.
300-600W RMS transmit power – Strong signal output maintains bottom tracking in rough offshore conditions or when running at higher boat speeds.
Two-channel operation – Observe depth detected from different locations of the ship simultaneously. Information from both transducers can be displayed side by side.
Clear fish icon with fish alarm – Converts sonar returns to easy-to-identify fish symbols. Audible alarm notifies you when fish targets are detected.
Split-screen zoom – Magnifies bottom and fish targets in a separate window while maintaining full water column view on the main display.
Built for Marine Environments
Voltage range: 11-32V input – works on 12V or 24V electrical systems
Power dissipation: Below 25W – low draw for extended offshore trips
Operating temperature: -10°C to 50°C (14°F to 122°F)
Display: 6-inch color LCD
Languages: Simple Chinese, English, Korean, Vietnamese
Sonar Capabilities Summary
| Feature | Availability |
|---|---|
| Dual-frequency sonar capable | Yes |
| Dual-beam sonar capable | Yes |
| Fish Symbol ID | Yes |
| Fish alarm | Yes (audible) |
| Auto Gain Technology | Yes |
| Split-screen Zoom | Yes |
| Soft bottom detection | Yes |
| Adjustable depth line | Yes |
| Displays fish targets at higher boat speeds | Yes |
What "Soft Bottom" Means for You
The soft bottom detection feature identifies muddy or silty seafloors versus hard bottom (rock, gravel). This helps you:
Identify anchor holding ground
Locate species that prefer soft bottom (flounder, halibut)
Avoid fouling gear on debris hidden in soft sediment
Two-Channel Dual Transducer Operation
Connect transducers on different hull locations (port/stbd or bow/stern) and view both returns simultaneously. Applications include:
Comparing depth on both sides of an offshore ridge
Monitoring trolling spread with transducers on outriggers
Redundancy if one transducer is fouled
Optional Transducers
Contact our sales team to select the right transducer for your hull type, offshore depth requirements, and mounting location.
Technical parameters：
|
Model |
FP621S |
|
TX Frequency |
50&200KHz |
|
Output Power |
300W-600W |
|
TXRate |
0.12~3.0ms |
|
Accuracy |
0.1m |
|
Sensitivity |
-95dBm |
|
Alarm |
Depth,Voltage,Temperature |
|
Language |
Simplified Chinese, English, Traditional Chinese |
|
Display Unit |
|
|
Display Mode |
Dual frequency,Single frequency (high or low freq.), A-scope, Zoom(high or low freq.) |
|
Expansion Mode |
Auto Expansion,Manual Zoom,Bottom Lock |
|
TXRate |
7 steps(stop,1/8,1/4,1/2,1/1,2/1,3/1) |
|
Color |
Echo color:5 color schemes Background color：black, blue |
|
Interface |
|
|
Input data |
IEC61162-1(NMEA0183)RMC, GLL |
|
Output data |
IEC61162-1(NMEA0183)DPT, DBT(After GLL and RMC Input) |
|
Serial port to print |
Suitable for printer DPU-414 |
|
Power Supply |
DC 24V(11-35V) |
|
Environmental |
|
|
Operating temperature |
-10℃~+40℃ Compliance with IEC60945 standard |
|
Working humidity |
10~90% |
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