Raymarine DST820 - Through-hull depth, speed and temperature transducer

Smart NMEA 2000 transducer for measuring depth, speed through water, temperature, heel and trim.

To connect it to a Raymarine SeaTalk ng network, the optional A06045 adapter cable is required.

The DST820 combines depth, speed through water and temperature measurements, along with vessel heel and trim data, in a single through-hull transducer.

Its Gen2 paddlewheel registers speeds from less than 0.3 knots and offers an update rate of 5.7Hz, suitable for smoothly tracking speed changes while underway. The integrated attitude sensor provides information on the boat's longitudinal and lateral inclination.

The secure Bluetooth connection allows the transducer to be configured and calibrated from a phone or tablet using the Airmar CAST app. It supports basic and advanced calibrations, including speed compensation according to different heel angles and sailing ranges.

Data is transmitted via NMEA 2000 for integration with compatible onboard instrumentation. When connecting to a Raymarine SeaTalk ng network, the optional A06045 adapter cable must be used.

Its retractable housing with valve makes it easy to remove the insert for inspection, cleaning or maintenance.

Key features

- Depth, speed through water and temperature measurement.

- Integrated attitude sensor for heel and trim data.

- Gen2 paddlewheel with readings from less than 0.3 knots.

- Speed measurement up to 45 knots.

- Speed update at 5.7Hz.

- Wireless calibration via Bluetooth and the CAST app.

- Advanced calibration with heel compensation.

- Bluetooth connection secured by QR code and one-time password.

- Integration with NMEA 2000 networks.

- Connection to SeaTalk ng via the optional A06045 adapter.

- Retractable housing with valve for easy maintenance.

- Compatible with most 2-inch Airmar housings.

- Installation on hulls with up to 22° of deadrise.

Technical specifications

- Functions: depth, speed, temperature and attitude.

- Installation type: low-profile through-hull.

- Output protocol: NMEA 2000.

- SeaTalk ng connection: requires optional A06045 adapter.

- Depth range: 0.5?100m.

- Speed range: up to 45 knots.

- Speed update rate: 5.7Hz.

- Depth update rate: 1Hz.

- Heel and trim update rate: 10Hz.

- Temperature accuracy: ±0.5°C.

- Power: 80W.

- Supply: 9?16V DC.

- NMEA 2000 load: LEN 2.

- Wireless connectivity: Bluetooth BLE.

- Cable length: 6m.

- Hole diameter: 51mm.

- Maximum hull angle: 22°.

- Housing material: plastic.

- Compatible hulls: fiberglass and metal.

- Retractable housing: yes.

- Useful shaft length: 121mm.

- Weight: 1.6kg.

- Certification: CE.