Airmar DT820BV-235-N2 Smart Depth Temperature Sensor 20° Tilt Bronze NMEA 2000

The Airmar DT820BV-235-N2 is a low-profile, retractable thru-hull Smart Sensor that delivers precise depth and temperature readings directly to any NMEA 2000 display. Combining Airmar's proven Tilted Element technology with embedded microelectronics, this sensor processes data internally for reliable performance with minimal wiring complexity.

Key Features:

• 235 kHz frequency eliminates interference with standard 50/200 kHz fishfinders
• Maximum depth range of 180 meters (594 feet) with minimum depth of 0.5 meters (1.6 feet)
• Fixed 20° tilted element optimized for hull deadrise angles between 16° and 24°
• 12° narrow beam cone angle for accurate bottom tracking
• Retractable bronze housing with self-closing valve for easy maintenance without water intrusion
• Urethane transducer face enhances sensitivity and high-speed performance
• 100W RMS power handling with broadband ceramic element
• Integrated temperature sensor for water temp monitoring

Specifications:

• Housing diameter: 51mm (2 inches)
• Usable shaft length: 57mm (2.25 inches)
• Accommodates hull thickness: 6.3mm to 54mm (0.25" to 2.125")
• Includes 0.6 meter (19.8 feet) NMEA 2000 DeviceNet cable with connector
• Blanking plug included for installation flexibility

The DT820BV-235-N2's Smart Sensor technology places the transducer element and signal processor millimeters apart, ensuring clean signal processing and reliable data transmission through a single cable connection. The tilted ceramic element orients the beam straight down regardless of hull angle, producing strong bottom echoes and accurate depth readings even at high speeds.