Sales Inventory
Dive into our world of cutting-edge sonars, advanced navigation equipment, and state-of-the-art software—all crafted to optimize your hydrographic operations.
At ECHO81, we understand the stresses of investing and procuring with the overwhelming number of options in the market today. Let our devoted sales team help you realize the perfect solution to cover every aspect of your requirements.
Whether you have inquiries about our superior products or seeking expert advice, we’re just a phone call or email away!
Browse by Technology.
Find the perfect products tailored to your specific needs
CONTACT INFO
Have a question? Can’t find what you’re looking for? We’d love to hear from you!
Connect with us using the information below.
PHONE
+1 706-522-3022
ADDRESS
481 S. Jackson Street
Hartwell, GA 30643
Hartwell, GA 30643
At ECHO81, we believe in the power of collaboration and are proud to work alongside a network of exceptional partners who share our commitment to excellence. We work with EdgeTech, Kongsberg, Applanix, AML Oceanographic, and many more.
We are always looking for new ways to grow and improve. If you have any questions, feedback, or would like to learn more about how ECHO81 can assist you, please don’t hesitate to Contact Us


















USM High Tower OTS Sonar Mount
Impact Subsea ISS360 (Rental)
HYPACK MAX (Rental)
Kongsberg 352P MGC R3 USBL System
EdgeTech 4205: Multi-Pulse/Motion Tolerant (MP/MT) Side Scan Sonar
HSP 22" Sheave Counter (Rental)
EdgeTech 2205 Tri-Frequency Side Scan Sonar & Subbottom Profiler
Applanix POS MV SurfMaster One INS
EdgeTech 4205 Side Scan Sonar Depressor Wing
Applanix POS MV OceanMaster INS IP68 (Rental)
EdgeTech 3400-OTS Low Freq Digital Subbottom Profiler Dual Transmitters
QPS Qimera 2
Applanix RTK POS MV WaveMaster II RM INS
EdgeTech 3100P Sub Bottom Profiler (4-24 kHz) (Rental)
Impact Subsea ISFMD System Software License
EdgeTech 3400-OTS Ultra-Lightweight Pole-Mount Subbottom Profiler (4-24 kHz)
Innomar ISE Processing Software (Rental)
Innomar Medium-USV Subbottom Profiler (Rental)
SonarWiz Side Scan Sonar & Subbottom Profiler Processing Software
EdgeTech 4125i Side Scan Sonar Depressor Wing Kit
Innomar Standard -USV Subbottom Profiler
EdgeTech 3400 Dual 216 Subbottom Profiler Towfish With Pole Mount Adapter
Innomar SixPack Multi Transducer Subbottom Profiler
HYPACK DREDGEPACK
R2Sonic Dual Head Mounting Bracket 2020 (Rental)
Applanix POS MV WaveMaster II INS (220) (Rental)
R2 Sonic (I2INS) Inertial Navigation System (Rental)
Applanix RTK POS MV SurfMaster SFF INS INS
HYPACK HYSWEEP OFFICE
EdgeTech 2300 Combined Tri-Freq Side Scan Sonar & High Res Subbottom Profiler
Applanix GNSS antenna, 540AP
Innomar Deep-36 Subbottom Profiler
Kongsberg cNODE MiniS 31-180 Beacon w/Pressure Sensor (Rental)
G882 TVG Transverse Gradiometer (Rental)
EdgeTech 3400 Dual 216 Subbottom Profiler Towfish With Tow Bridle
HYPACK HYSWEEP
Applanix RTK POS MV WaveMaster II SFF IP68 INS
Trimble BX992 (Rental)
USM Compact OTS Sonar Mount (Rental)
EdgeTech 3400-512E 500 Hz-12 kHz Side Scan Sonar
Innomar Smart Subbottom Profiler
SeaGear Oceanographic Winch (Rental)
Innomar Quattro Multi Transducer Subbottom Profiler
USM MegaTower OTS Sonar Mount
EdgeTech 3400 Dual 216 Subbottom Profiler Towfish With Tow Bridle & 4 kW Amp
EdgeTech 2300B Combined Tri-Frequency Side Scan Sonar With 3D Bathy & High Res Subbottom Profiler (Rental)
Fugro MarineStar Subscription
USM MegaTower OTS AL Weld Down Plate
USM Compact Sonar Mount VOOP Kit (Rental)
Geometrics G882 Magnetometer (Rental)
USM HighTower Bow Sonar Mount (Rental)
R2Sonic 2024 Multibeam Sonar (Rental)
Applanix POSPac MMS
EdgeTech 3400-OTS (2-16 kHz or 4-24 kHz) Subbottom Profiler (Rental)
Innomar Deep-15 Subbottom Profiler
Kongsberg cNODE Micro 31-180 Beacon
EdgeTech Laptop
Geometrics Magnetometer Telemetry MUX (Rental)
Applanix Extended POS MV warranty products
EdgeTech 3400-OTS Lightweight Sonar Head (2-16 kHz) Subbottom Profiler
HYPACK LITE
R2Sonic Dual Head Mounting bracket 2024 (Rental)
Applanix GNSS antenna, GA830