BT70M300-18 — CHIRP transducer mid-band 95-155 kHz 300 W, low-profile bronze through-hull, 18° tilt, depth and temperature
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Awaiting restock
Technical specifications
Technical specifications
| Supported sonar technologies | CHIRP |
| Fishfinder frequencies | 95-155 |
| Peak power | 300.0 |
| Max depth reading | 183.0 |
| Transducer material | Bronze |
| Sonar connector type | Mâle 8 broches |
| Cable length | 9.0 |
| Product width | 60 |
| Integrated temperature sensor | Oui |
| Mounting type | Passe-coque |
| Beam coverage angle | 23° à 17° |
| Bottom Coverage At 100m | 41 |
| Bottom Coverage At 10m | 4 |
| Bottom Coverage At 50m | 20 |
| Hull Deadrise Compatibility Range | 16° à 24° |
| Hull Hole Saw Diameter Mm | 62 |
| Transducer Frequency Type | CHIRP Moyenne |
| Transducer Model Name | BT70M300 |
| Transducer Series | BT70xxx |
| Transducer Tilt Angle | 18 |
Detailed description
Detailed description
Designed for precise underwater detection, the ECHONAUTICS BT70M300-18 transducer is a CHIRP mid-band 300 W transducer. This low-profile bronze through-hull model provides depth and temperature sensing, ideal for navigators and anglers seeking reliable data at depths up to 183 m (600 ft).
CHIRP mid-band performance
The ECHONAUTICS BT70M300-18 transducer operates over a CHIRP frequency range of 95 to 155 kHz, enabling excellent target separation and clear detection of underwater structures. With 300 W of power, it delivers effective bottom coverage, particularly at intermediate depths. The beam width ranges from 23° to 17° at -3 dB, ensuring good vertical and horizontal coverage. At 10 m depth, bottom coverage reaches 4 m, increasing to 41 m at 100 m depth.
Robust design and specific installation
The BT70M300-18’s bronze through-hull design is built for durable installation and resistance to marine environments. Its low profile minimizes drag. The 18° tilt version is specifically suited to hulls with a deadrise angle between 16° and 24°, ensuring the sonar beam is correctly oriented for optimal performance. Installation requires a 62 mm (2.44 in) diameter hole in the hull and a 60 mm (2.36 in) thread. The 9 m (29.5 ft) cable is fitted with a standard 8-pin male connector, facilitating integration with compatible electronic systems.
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