Base•X₂ SVP


Featuring integrated WiFi, this ideal sound velocity profiler for the shallow water hydrographic surveyor was designed with convenience and efficiency in mind.

Presenting the best profiler technology of today in a compact form, Base•X₂ retains the size of its popular predecessor, Base•X, while gaining embedded WiFi connectivity and GPS . With the swap of a single sensor head, Base•X₂ converts from an SVP to a CTD.

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Product Description

The latest generation of the popular shallow water sound velocity profiler Base•X presents the best profiler technology of today in a compact form. Available in 100 m and 500 m versions, Base•X₂ retains the size of its predecessor while gaining embedded WiFi connectivity and GPS. Data is automatically downloaded and processed into desired manufacturer formats, saving valuable time for the operator.

Designed for profiling in coastal waters, this two sensor-port profiler is optimal for hand deployments from small boats, launches, and survey vessels. Like all other X•Series instruments, Base•X₂ uses Xchange™ field-swappable sensors and converts from an SVP to a CTD profiler with the switch of a single sensor head.

Product Info


Sensor Ports2
Depth Rating100 m, 500 m
Housing Material100 m: Acetal, 500 m: Acetal
Sensor Cage MaterialStainless Steel
CommunicationsWiFi, RS-232
Baud Rate38400, 115200
Power SourceInternally Rechargeable Battery, External
Data OutputLogs to Memory, Real-time Output
Input Voltage9-28 V
Length390 mm (15.3″)
Diameter69 mm (2.7″)
Weight in Air1.2 kg (2.6 lbs)
Weight in Water0.5 kg (1.1 lbs)
Product Info



ParameterSound VelocityPressure
Depth Rating6000 m100 m, 1000 m, 200 m, 2000 m, 4000 m, 50 m, 500 m, 5000 m, 6000 m
Range1100-2000 m/s, 1375-1625 m/s ᵃ, 500-2000 m/s0-100 dBar, 0-1000 dBar, 0-200 dBar, 0-2000 dBar, 0-4000 dBar, 0-50 dBar, 0-500 dBar, 0-5000 dBar, 0-6000 dBar
Response Time20 ms, (sample duration 47 μs)10 ms
Accuracy (+/-)0.025 m/s ᵍ0.05% FS
Precision (+/-)0.006 m/s ᶠ0.03% FS
Length87 mm (3.44″)73 mm (2.86″)
Diameter32 mm (1.25″)11 mm (0.45″)
Resolution0.001 m/s0.02% FS
Instrument Manual

Sensor Manuals

Software Manual

Data Sheets

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