BL200 Single Beam Echo Sounder

$2,590.00 $2,690.00

SKU: BL10001 Category:

The BL200 is a Survey Grade 200 kHz Single Beam Echo Sounder and is the best choice for shallow water bathymetric (hydrographic) surveys up to 100 meters deep. This model has a USB or RS232  output connector. This is the best choice if you will be primarily logging on a PC or a Tablet type running windows.

Included in the kit:
• Rugged Hard Case
• Boat Mounting Bracket
• 5x Survey poles
• Li-ion Battery with Charger
• Usb manual flash drive

No Sales Tax charged outside of California

Shipping Cost $50.00 Ground to Lower 48 States     –   Express Shipping is Additional  



USB output cable is normally for PC / Tablet applications running Windows 10 etc.

DB9 output cable is normally used on windows mobile data collector based software. (TSC3, CS30, Surveyor2 ,FC-500, etc)


The BL200 is a Survey Grade 200 kHz Single beam Echo sounder (sonar) and is the best choice for shallow water bathymetric surveys up to 100 meters deep. This unit has an embedded transceiver with digital signal processing. Its “smart”. It adjusts power and gain as needed, it knows how deep it is and when it has bottom track. This is the most portable Survey Grade Echo sounder made today. The Bathylogger delivers the same accuracy as the best Survey transducers in the world 1cm +/- every 10 meters of depth. The simplicity is in the design, less is more. It can tackle saltwater or freshwater from lakes and rivers to Ports and Harbors. Perfect for Hydrographic Surveys, Bridge Scouring, Dredging Surveys, Mining Tailings ponds and more. Compatible with ALL manufacturers: Trimble, Leica, Topcon, Socchia , Carlson, Hemisphere, Hypack, Hydromagic, Quinsy and more. The BL200 Meets USACE Specs and is made in the USA.

Included is our very own Bathylogger Control Software for a PC. With this you can adjust the sound velocity and output ping rate 1 – 10 hz, It also has a built in terminal program to view output data.


Sonar FYI

Echo Sounding Sonar uses the time interval between a series of soundings and echos  for several purposes like range finding (survey) , fish finding or imaging. The bathy logger is a single beam , single frequency 200 kHz echo sounder made for conducting survey grade bathymetric ( Hydrographic ) surveys. Over 90% of bathymetric surveys in the world are still done with single beam echo sounders. Survey Echo sounders have a narrower beam (cone) and can not see fish in the water column.  We just want to track the bottom and interpret the returns for accuracy unlike a fish finder. 


Construction: Stainless Steel

Frequency: 200Khz

Accuracy: 0.01 m +/- 0.1% depth

Ping rate: 1Hz – 10Hz / 1-10 Soundings / second

Depth Range: .4m (1.3 ft) > 100m (328ft)

Beam Width: 9 Degree

Power supply voltage: 9 – 40VDC, Regulated

Power output from transmitter: 100 watts at 13.6 Vdc input

Average current draw: 150mA @ 13.6V

NMEA0183 Baud Rate: 4800

Operating temperature range: -5C to +60C

Mounting: Threaded CNC adaptor

Battery: 8000mah Li-Ion 24 hour range

Mounting: Boat mount kit included

Data Output: USB – Hard cable eliminates bluetooth latency issues

Output format String: NMEA DBT

Calibration: Control Software Included for Sound Velocity (1350-1650) and Output Rate (1Hz – 10 Hz)

CE certification: Yes to marine standard IEC60945

bl200 other brand
Transducer housing Stainless steel Plastic
Frequency 200khz 233khz
Depth range .5m-100m .5m-75m
Accuracy – 0.01 m +/- 0.1% depth – 0.01 m +/- 0.1% depth
Beam width 9 degree 9 degree
Ping rate output 1-10 per second adjustable 2 per second non adjust
SV adjustment Increments of 1 (1350-1650) Increments of 10
Battery swapping Yes No
Cost $2590.00 $5000.00 -$10,000.00
Contact Us

Not readable? Change text. captcha txt