WS720S vertical wind sensor Ocean spec 1.1m
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Technical specifications
Technical specifications
| Wired network | NMEA 0183, NMEA 2000 (via interface) | NMEA 0183, NMEA 2000 (via optional interface) |
| Wind angle accuracy | ±0.5 |
| Wind speed accuracy | ±0.2 knots (from 2 to 80 knots), 0.1 knot resolution |
| Compatible systems | B&G H5000, WTP3, Triton², Nemesis™, Zeus™ multifunction displays |
| Mast material | High modulus carbon |
| Anemometer type | One-piece vane wind sensor |
| Cup assembly material | Composite polymer |
| Housing material | Anodized aluminum |
| Product height | 1050 |
| Operating voltage | 9-16 | 12 |
| Max power consumption | 1.8 |
| Cable length | 35 m |
| Wind vane / anemometer compatibility | B&G H5000, WTP3, Triton², Nemesis™, Zeus™ |
| Product depth | 1100 mm |
| Warranty period | 2 years |
| Vertical shaft length | 1.1 |
| Ingress protection | IPx6 |
| Wireless connectivity | No |
| Compatible network | NMEA 0183, NMEA 2000 (via optional interface) |
| Power supply | 12 |
| Product weight | 0.5 |
| IP rating | IPx6 |
Detailed description
Detailed description
The B&G WS720S vertical wind sensor Ocean spec 1.1m is a high-performance wind transducer / vane anemometer designed for regatta and offshore racing. Its 1.1-meter high-modulus carbon vertical mast positions the sensor in undisturbed airflow above the sail plan for maximum wind data accuracy. Its aerodynamic design ensures optimal stability and responsiveness. The WS720S is designed for direct integration with B&G H5000 and WTP3 systems via its NMEA 0183 output.
Performance and precision for racing
The WS720S wind sensor provides highly reliable wind data essential for tactical decisions and autopilot control. It measures wind speed from 0.5 to 90 knots with an accuracy of +/- 0.2 knots (between 2 and 80 knots) and a resolution of 0.1 knot. Wind angle accuracy is +/- 0.5°. Data is transmitted via the NMEA 0183 MWV,R sentence at 10Hz, ensuring real-time refreshed information for peak performance.
Positioning within the WS700 range
The WS720S is part of B&G’s WS700 vertical sensor series. With its 1.1m carbon mast, it is positioned as a Ocean Spec solution offering greater height than the entry-level WS710 model (0.8 m), while being more compact than the WS730S (1.4 m) and WS740S (1.8 m) versions. This model is specifically designed for racing sailboats requiring the sensor to be clear of aerodynamic disturbances generated by sails, without opting for the longest masts in the range. As a Ocean Spec version, it requires a custom mounting bracket.
Technical specifications and connectivity
The WS720S wind sensor is powered by 12V DC (9 to 16V DC range) with low power consumption under 0.2 W (15 mA at 12V). Primary connectivity is via an NMEA 0183 output with 38400 baud serial port configuration. NMEA 2000 network connection is possible via an optional interface. The sensor weighs 0.5 kg (without cable) and features IPX6 waterproof certification. It is designed to operate within a temperature range of -15°C to +55°C.
Expert opinion
Expert opinion
Pol CONIN
Digital Manager
« Regatta precision and Ocean Spec reliability in NMEA 0183 »
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