NexSens CB-25-SVS Wave Buoy

At 18in Hull Diameter, and less than 13.6kg weight, the CB-25-SVS can measure waves in drifting, tethering or mooring applications.

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Wave Sensor: SeaView Systems SVS-603HRi

Available Wave Parameters: Significant wave height, dominant period, wave direction, mean wave direction and more

Range: Wave Height: 0.2-20m; Wave Period: 1.5-20 seconds; Wave Direction: 0-360°

Resolution: Wave Height: 0.001m; Wave Period: 0.001 seconds; Wave Direction: 0.001°

Accuracy: Wave Height: +/- 0.5cm; Wave Period: <1%; Wave Direction: +/-2°

Diagnostic Sensors: Internal temperature (-40C to 85C, 0.1C resolution, ±0.3C accuracy); Humidity (0% to 100%, 0.1% resolution, ±4% accuracy from 5 to 95% RH & -20 to 70C); Battery voltage

Optional Water Sensors: Surface temperature, single-parameter sensors, multi-parameter sondes

Optional Atmospheric Sensors: Single and multi-parameter weather sensors

Optional Position Sensor: Marine GNSS receiver or standalone asset tracking device

Sensor Interfaces: SDI-12, RS-232 (3 channels), RS-485

Sensor Ports: (2) External sensor ports, expandable using splitters

Battery: 12 VDC sealed lead acid (SLA) battery, 6.0 A-Hr

Solar Power: (3) 4-watt 12 VDC solar panels

Serial Interface: Direct RS-485 via USB adapter (for setup)

Wi-Fi Interface: 802.11b/g/n (for setup)

Cellular: 4G: LTE Bands B2(1900), B4(1700), B5(850), B12(700ac), B13(700c)

Iridium Satellite: Short Burst Data (SBD) 1616 MHz to 1626.5 MHz

Cloud Datacenter:  WQData LIVE web portal with auto data export to NDBC, GLOS, and others (configurable on web portal)

Data Logging: 256MB microSD card (expandable up to 32GB)

Hull Dimensions: 18” (45.72cm) outside diameter; 11” (27.94cm) tall

Tower Dimensions: 8” (20.32cm) tall, triangular

Center Hole Dimension: 5.5″ (13.97cm) inside diameter

Weight: 30 lbs. (13.61 kg)

Net Buoyancy: 25 lbs. (11.34 kg)

Hull Material: Cross-linked polyethylene foam with polyurea coating & stainless steel deck

Hardware Material: 316 stainless steel

Mooring Attachments: (4) 3/8” eye nuts

Operating Temperature: -20C to 70°C

Place of Manufacture: Ohio & Michigan, USA

Field Verification: Tested and verified by LimnoTech, Ann Arbor, MI

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    Additional information

    Hull Dimensions

    48" (121.92 cm) outside diameter; 28" (71.12 cm) tall

    Tower Dimensions

    50" (127.00 cm) tall, 7/8 tubular

    Data Well Dimensions

    10.3" (26.16 cm) inside diameter; 27.5" (69.85 cm) tall


    300 lbs. (136.08 kg)


    1250 lbs. (566.99 kg)

    Hull Material

    Cross-linked polyethylene foam with polyurea coating and stainless steel deck

    Hardware Material

    316 stainless steel

    Mooring Attachments

    1 or 2 point, 3/4" eyenut

    Solar Panel

    (3) 55-watt 12 VDC solar panels