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Obscape

Flow Gauge

Flow Gauge

Flow Gauge

Obscape’s Flow Gauge delivers real-time surface flow velocity measurements using advanced Doppler shift radar technology. Installed above the water surface, it ensures easy deployment and requires minimal maintenance. Designed for both natural and engineered waterways, it is ideally suited for monitoring river flow, outfall discharge, and open channel runoff.

By utilizing pulse wave radar, the Flow Gauge captures surface flow velocity without making contact with the water. This non-contact design eliminates the risk of biofouling and minimizes maintenance, while also preventing damage from sediments, floating debris, or driftwood. Its reliability makes it especially valuable during flood events. Accurate velocity data supports a range of applications including environmental monitoring, discharge calculations, riverbed protection, and sediment transport analysis.

Purchase Includes

  • Free access to the Obscape Data Portal
  • Mounting brackets
  • SD card (supports offline mode)
  • Satcom upgrade for continuous connectivity beyond cellular range (optional)
  • Cellular global SIM (optional)

Key Features

  • Wide Angle: A 32° opening angle captures a broad range of velocities
  • Reliable Connectivity: Seamless data transmission via cellular networks for consistent remote access
  • Easy Deployment: Compact, lightweight, and free of underwater components—ideal for quick and simple installation
  • Solar Powered: Integrated solar panel powers a fully contactless sensor system for minimal maintenance
  • Integrated Data Portal: Intuitive online portal for efficient data access, visualization, and analysis

Technical Specifications

General Specifications

  • Housing Size: 195 mm diameter × 87 mm width x 87 mm depth
  • Housing Weight: 2 kg
  • Primary Power Source: Solar-powered, 3 Watt
  • Battery Type: 1 x 18650 Lithium-ion battery
  • Nominal Voltage: 3.7 V

Parameters

  • Sample Interval: 5 – 60 minutes (user selectable)
  • Telemetry Data Queue: In the event of temporary connection outages, a data queue ensures data is sent
  • Diagnostic Parameters: Sensor inclination, battery voltage, signal strength, internal temperature

Sensor

  • Sensor: Flow-tronic phoenix radar sensor or OTT SVR100
  • Sensor Accuracy: +/- 1%
  • Detection Range: 0.50 m - 35 m
  • Velocity Limits: ±0,10 to ±15 m/s (Depending on flow conditions: bi-directional / flow direction detection)

Communication

  • Connectivity: Cellular (4G with 2G fallback) and optional upgrade to satellite (Iridium)
  • Cellular Data Load: ~8 kB per message
  • Real-Time Data Interval: 5 minutes - 24 hours (User selectable)

Data Output

  • Data Reported: Surface flow velocity

Data Storage

  • Cloud Storage: Includes free access to the Obscape Data Portal for both real-time and historical data, as well as sensor configuration and alert management.
  • On-board SD Card: Backup storage in case of offline conditions or transmission issues

Data Access

Your device, your data: easily accessible on the included data portal

  • Real-Time Data: Access up-to-date surface flow velocity measurements instantly
  • Download: Export data as CSV files, graphical visualizations, and detailed PDF reports
  • Forwarding: Automatically transmit data via JSON API or HTTP POST for seamless integration
  • Notifications: Receive alerts for device status (online/offline), battery level, and threshold exceedances

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