Pro-Oceanus: Solu-Blu™ Dissolved CH4 Probe

Dissolved methane probe for groundwater, landfill leachate, bioreactors and more. Best suited for long-term monitoring.

The Solu-Blu™ Series of instruments combine rugged design, ease of use and versatility, all in a single sensor package. The measurement of a gas dissolved in a liquid is facilitated by a semi-permeable membrane that allows gases to transfer from water into a gas head space where the measurement is made.

The Solu-Blu™ dissolved CH4 probe can be used for long-term continuous in-situ monitoring to provide dissolved methane data for applications such as groundwater baseline monitoring and laboratory fermentation studies. The probe provides a fully temperature and pressure compensated data. Flowthrough and in-line adapters are also available for simple and effective industrial solutions.

The simple yet rugged sensor allows for the monitoring of methane in a range of environments and liquids. The probe is configured for multiple data output formats to allow for rapid integration into most platforms for data transmission and collection with minimal time and effort.


  • – Provides continuous 24-7 monitoring
  • – Compact size
  • – Easily integrated
  • – Rugged design
  • – Plug and play sensor


  • – Determining baseline levels of dissolved methane prior to hydrofracturing
  • – Groundwater and wellwater monitoring
  • – Wastewater greenhouse gas emissions
  • – Landfill leachate methane monitoring
  • – Measurement of dissolved CH4 in fermentation bioreactor


Sensor Performance
CO2 Measurement Ranges0-30 mg/L
0-3 mg/L
0-300 μg/L
CH4± 3% of max range
TDGP± 0.1%
Temperature± 0.5º C
Equilibration rate (t63):~10 minutes
TDGP10 minutes
Resolution pCO20.1% of max range
Length20 cm (8 in)
26 cm with connector
Diameter5 cm (2 in)
Weight0.28 kg (0.6 lbs)
Housing MaterialAcetal Plastic
Depth Rating0 – 50 meters
Water Temperature-2º to 40º C
Input voltagedigital: 6-24 VDC
analog: 12-24 VDC
Power consumption0.45 W (35 mA @ 12 V)
Data outputRS-232, ASCII format
0-5 V or 4-20 mA
Sample rate1 second

Telemetry2U Compatible

Telemetry2U lets you monitor your sensors, control devices and automate tasks – all through one simple, secure, and configurable IoT platform. Pro-Oceanus products are compatible with their technology, allowing for:

  • – Real-time data access on any device
  • – Alerts and alarms for parameters you define
  • –  Comprehensive reporting and historic data visualizations available on customizable dashboards

Servicing, Calibration and Support

Imbros’ local engineering department can service, repair and calibrate your instrument without expensive shipping costs or wait times.


More information from Pro-Oceanus Download Datasheet

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