Echonautics BT87 series
Angled Element Low Profile Bronze Transducers
CHIRP | Medium or High Frequency | 1KW
Transducer Overview
This low-profile bronze thru-hull transducer minimizes drag below the hull surface, making it ideal for center consoles and other high performance fishing boats. With nothing to interfere with clean water flowing across the transducer face, this design delivers optimum sonar performance at higher boat speeds, meaning that anglers can detect fish and track bottom when trolling or motoring to offshore fishing grounds.
The BT87 Series’ narrow beamwidth and angled element design provides vertical beam orientation, making it excellent for pinpointing fish holding tight to reefs, wrecks, and other structure. Powerful 1kW CHIRP performance provides superior fish detection and enhanced sonar detail in deep water. Available in 0°, 12°, and 18° tilt versions for use on vessels with various hull deadrise angles up to 24°.
Each tilt variation is available in Medium Frequency CHIRP (85-135kHz) and High Frequency CHIRP (130-210kHz). The BT87 Series is a powerful solution for many high-performance CHIRP sonar systems.
Applications
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Recreational fishing
-
High-performance center consoles
-
High-performance fishing boats
-
Wooden or fiber glass hulls
Key Features
Echonautics BT87 series Key Features
Echonautics BT87 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
BT87M1KW tech specs
| Model | BT87M1KW |
| Sonar type | CHIRP ready |
| Frequency | High 85 - 135 kHz |
| Power | 1KW |
| 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 | 20° to 12° @ 3db |
| Max Depth | Max 457 m (1,499 ft) |
| Temperature sensor | NTC |
| Acoustic window | Urethane |
| Weight | 3540 g (49 oz) |
| Hole diameter | 90 mm (3.54”) |
| Cable length | 8 m (26 ft) |
BT87H1KW tech specs
| Model | BT87H1KW |
| Sonar type | CHIRP ready |
| Frequency | High 130 - 210 kHz |
| Power | 1KW |
| 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 | 13° to 8° @ -3db |
| Max Depth | Max 304 m (997 ft) |
| Temperature sensor | NTC |
| Acoustic window | Urethane |
| Weight | 3540 g (49 oz) |
| Hole diameter | 90 mm (3.54”) |
| Cable length | 8 m (26 ft) |
Versions
BT87 series Comparative Table
|
|
BT87M1kWMedium Frequency CHIRP 1KW ORDER CODE 0°: UX0TD700EN
|
BT87H1kWHigh Frequency CHIRP 1KW ORDER CODE 0°: UX0TD700EN
|
CHIRP |
✓ |
✓ |
CW |
x |
x |
300W |
x |
x |
600W |
x |
x |
1KW |
✓ |
✓ |
LOW |
x |
x |
MEDIUM |
✓ |
x |
HIGH |
x |
✓ |
DUAL |
x |
x |
0°, 12°, 18° |
✓ |
✓ |
BRONZE |
✓ |
✓ |
STEEL |
x |
x |
THRU HULL |
✓ |
✓ |
STEM |
x |
x |
Downloads
BT87 downloads
 |
Product Datasheet > BT87M1kW > BT87H1kW |
|
Installation Guide BT87 |
|
Wiring Scheme BT87 |
|
Integration Guide |
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