Echonautics BT70 Series
Angled Element Low Profile Bronze Transducers
CW | Dual Frequency 50/200kHz | 600W
CHIRP | Low or Medium Frequency | 300W
CHIRP | Medium or High Frequency | 600W
Transducer Overview
This popular series is available in both CW (Continuous Wave) dual frequency or a variety of high-performance CHIRP versions.
The low profile thru-hull design minimizes drag below the hull surface and provides superior fish finding and bottom tracking performance at high speeds.
This makes it an ideal transducer solution for high-performance center consoles, flybridge sportfishers, and other popular vessels.
With traditional 600W 50/200kHz dual frequency and Low/Medium/High Frequency CHIRP options, the BT70 Series is a versatile performer for many sportfishing vessels.
Compatible with major sonar brands, the full BT70 Series is offered in three tilt options: with 0°, 12°, and 18° angled elements to accommodate various hull deadrise angles up to 24° while delivering a focused vertical beam on targets below.
Applications
-
Recreational fishing
-
High-performance center consoles
-
Flybridge sportfishers
-
Wooden or fiber glass hulls
Key Features
Echonautics BT70 series Key Features
Echonautics BT70 series Key Features
-
Wide-band CHIRP support
-
Optimized acoustic geometry
-
Durable marine-grade construction
-
Stable performance across depth ranges
-
Three tilt options: Available in 0°, 12° and 18° Angled Element to accommodate various hull deadrise angles up to 24° while delivering a focused vertical beam on targets below.
-
Low profile thru-hull design minimizes drag below the hull surface and provides superior fish finding and bottom tracking performance at high speeds
-
Lloyd Certified Bronze housing (EN ISO 9093:2021): Echonautics bronze housings have all the wetted metallic parts made in the same alloy, to prevent any galvanic action. Echonautics bronze housings are designed to withstand the static load required by the American standard ABYC H-27 / UL1121.
Technical Specifications
BT70L300 tech specs
| Model | BT70L300 |
| Sonar type | CHIRP ready |
| Frequency | Low 40 -75 kHz |
| Power | 300W |
| Mounting | Thru Hull, low profile |
| Material | Bronze |
| Deadrise | 18° tilt version: for 16° to 24° hull deadrise 12° tilt version: for 8° to 15° hull deadrise 0° tilt version: for 0° to 7° hull deadrise |
| Beamwidth | 47° to 35° @ 3db |
| Max Depth | Max 366 m (1200 ft) |
| Temperature sensor | NTC |
| Acoustic window | Urethane |
| Weight | 1540 g (54 oz) |
| Hole diameter | 62 mm (2.44”) |
| Cable length | 8 m (26 ft) |
BT70MB300 tech specs
| Model | BT70MB300 |
| Sonar type | CHIRP ready |
| Frequency | Medium 95 -155 kHz |
| Power | 300W |
| Mounting | Thru Hull, low profile |
| Material | Bronze |
| Deadrise | 18° tilt version: for 16° to 24° hull deadrise 12° tilt version: for 8° to 15° hull deadrise 0° tilt version: for 0° to 7° hull deadrise |
| Beamwidth | 23° to 17° @ 3db |
| Max Depth | Max 183 m (600 ft) |
| Temperature sensor | NTC |
| Acoustic window | Urethane |
| Weight | 1540 g (54 oz) |
| Hole diameter | 62 mm (2.44”) |
| Cable length | 8 m (26 ft) |
BT70MA600 tech specs
| Model | BT70MA600 |
| Sonar type | CHIRP ready |
| Frequency | Medium 80 - 130 kHz |
| Power | 600W |
| Mounting | Thru Hull, low profile |
| Material | Bronze |
| Deadrise | 18° tilt version: for 16° to 24° hull deadrise 12° tilt version: for 8° to 15° hull deadrise 0° tilt version: for 0° to 7° hull deadrise |
| Beamwidth | 24° to 17° @ 3db |
| Max Depth | Max 274 m (900 ft) |
| Temperature sensor | NTC |
| Acoustic window | Urethane |
| Weight | 1540 g (54 oz) |
| Hole diameter | 62 mm (2.44”) |
| Cable length | 8 m (26 ft) |
BT70H600 tech specs
| Model | BT70H600 |
| Sonar type | CHIRP ready |
| Frequency | High 130 - 210 kHz |
| Power | 600W |
| Mounting | Thru Hull, low profile |
| Material | Bronze |
| Deadrise | 18° tilt version: for 16° to 24° hull deadrise 12° tilt version: for 8° to 15° hull deadrise 0° tilt version: for 0° to 7° hull deadrise |
| Beamwidth | 17° to 11° @ 3db |
| Max Depth | Max 213 m (700 ft) |
| Temperature sensor | NTC |
| Acoustic window | Urethane |
| Weight | 1540 g (54 oz) |
| Hole diameter | 62 mm (2.44”) |
| Cable length | 8 m (26 ft) |
BT70D600
| Model | BT70D600 |
| Sonar type | CW |
| Frequency | 50 -200 kHz |
| Power | 600W |
| Mounting | Thru Hull, low profile |
| Material | Bronze |
| Deadrise | 18° tilt version: for 16° to 24° hull deadrise 12° tilt version: for 8° to 15° hull deadrise 0° tilt version: for 0° to 7° hull deadrise |
| Beamwidth | 42° / 11° @ -3db |
| Max Depth | Max @50 kHz = 353 m (1,200 ft) Max @200 kHz = 206 m (700 ft) |
| Temperature sensor | NTC |
| Acoustic window | Urethane |
| Weight | 1540 g (54 oz) |
| Hole diameter | 62 mm (2.44”) |
| Cable length | 8 m (26 ft) |
Versions
BT70 series comparation table
|
|
BT70LB300Low Frequency CHIRP 300W ORDER CODE 0°: UX0TD200EN |
BT70MB300Medium Frequency CHIRP 300W ORDER CODE 0°: UX0TD100EN |
BT70MA600Medium Frequency CHIRP 600W |
BT70H600
|
BT70D600Dual Frequency CW 600W |
CHIRP |
✓ |
✓ |
✓ |
✓ |
x |
CW |
x |
x |
x |
x |
✓ |
300W |
✓ |
✓ |
x |
x |
x |
600W |
x |
x |
✓ |
✓ |
✓ |
1KW |
x |
x |
x |
x |
x |
LOW |
✓ |
x |
x |
x |
x |
MEDIUM |
x |
✓ |
✓ |
x |
x |
HIGH |
x |
x |
x |
✓ |
x |
DUAL |
x |
x |
x |
x |
✓ |
0°, 12°, 18° |
✓ |
✓ |
✓ |
✓ |
✓ |
BRONZE |
✓ |
✓ |
✓ |
✓ |
✓ |
STEEL |
x |
x |
x |
x |
x |
THRU HULL |
✓ |
✓ |
✓ |
✓ |
✓ |
STEM |
x |
x |
x |
x |
x |
Downloads
BT70 series downloads
 |
Product Datasheet > BT70H600 > BT70D600 |
|
Installation Guide BT70 |
|
Wiring Scheme BT70 |
|
Integration Guide |
Need help
Need help finding the right solution for you ?
Site map
> HOME
> PRODUCTS
> TECHNOLOGY
> WHERE TO BUY
> SUPPORT
> ABOUT US
footer echonautics 1
Advancing Transducer Technology
✓ Made in Italy
✓ 3-Year Warranty
✓ USA & EU Based Professional & OEM Support
✓ Supply from USA and EU Warehouse
footer contacts
ECHONAUTICS
11329 La Madre Ridge Dr. Las Vegas, NEVADA 89135 US
SALES NORTH AMERICA
AvMap Satellite Navigation Inc.
Riverhead, New York 11901, United States, USA
[email protected] | +1 631 996 690
SALES EMEA, APAC, LATAM
AvMap s.r.l.
Viale Zaccagna, 6, 54033 Carrara (MS), ITALY
[email protected] | + 39 0585 772305
