Airmar DT820BV-235-N2 Smart Sensor Depth & Temp Transducer 235 kHz 20° Tilt Bronze

The Airmar DT820BV-235-N2 is a low-profile, retractable, bronze thru-hull depth and temperature transducer with a fixed 20° tilted element and a self-closing valve. As an Airmar Smart Sensor, it processes the depth signal inside the sensor itself and sends depth and temperature data over NMEA 2000 to a compatible display.

The 235 kHz operating frequency lets it run alongside other Airmar 50/200 kHz transducers on board without interference. Because the ceramic element is tilted inside the housing, the beam points straight down, giving strong bottom echo returns and accurate depth readings. The retractable housing with self-closing valve reduces water flow into the vessel when the insert is removed for cleaning.

Key Features:

• Depth and temperature output over NMEA 2000
• Frequency: 235 kHz
• Cone: 12°
• Power: 100 W RMS
• Maximum depth range: 180 M (594')
• Minimum range: 0.5 M (1.6')
• Urethane face for better sensitivity
• Fixed 20° tilt, suited to 16° to 24° deadrise
• Retractable insert for easier servicing
• Usable shaft length: 57 mm (2.25")
• 51 mm (2") housing
• Accommodates hull thickness from 6.3 mm (0.25") to 54 mm (2-1/8")
• .6 M (19.8') NMEA 2000 DeviceNet cable and connector
• Blanking plug included

Embedded microelectronics place the transducer element and signal processor only millimeters apart, so a single cable to a compatible device or display is all that is needed to receive depth and temperature data.