The Airmar DT820BV-235-N2 is a low-profile, retractable thru-hull Smart™ Sensor that integrates the transducer element and signal processor into a single compact housing, delivering depth and temperature data over a single NMEA 2000 cable. Operating at 235 kHz, this sensor runs alongside on-board 50/200 kHz transducers without interference, and its urethane-faced broadband ceramic reads depth from as shallow as 500 mm (1.6') down to 183 m (600'). The 20° fixed tilt aligns the beam straight down on hulls with 16°–24° deadrise, and the retractable insert with self-closing valve keeps water out of the vessel during removal for cleaning.

Specifications:

• Frequency: 235 kHz
• Cone angle: 12°
• Power: 100 W RMS
• Maximum depth range: 180 m (594')
• Minimum depth range: 0.5 m (1.6')
• Fixed 20° tilt for 16°–24° deadrise
• Fixed 12° tilt for 8°–15° deadrise
• Fixed 0° tilt for 0°–8° deadrise
• Output: NMEA 2000
• Cable: 0.6 m (19.8') NMEA 2000 DeviceNet cable and connector
• Housing material: Bronze
• Housing diameter: 51 mm (2")
• Usable shaft length: 57 mm (2.25")
• Accommodates hull thickness: 6.3 mm (0.25") minimum to 54 mm (2-1/8") maximum
• Urethane face for enhanced sensitivity
• 235 kHz operation eliminates interference with fishfinder transducers
• Embedded microelectronics — signal processed inside the sensor
• Retractable insert with self-closing valve for easy serviceability
• Blanking plug included
• Measures depth and temperature
• Compatible with NMEA 0183 and NMEA 2000 displays

This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.