Pocket Oxygen Meter


  • Item nr.: FSGO2
  • With display, data logging up to 1-2 years
  • Rechargable battery & huge memory
  • Intuitive user interface
  • Compact (68 x 120 x 30 mm)

Simplify and boost your field and lab research

Based on the successful FireSting-O2 technology we developed the pocket oxygen meter FireSting-GO2, coming with high-contrast display, integrated rechargable battery, huge data memory, and versatile long-term logging features. It has never been easier to perform your oxygen measurements in gas and liquids wherever you go! We implemented leading-edge technology with ultra-low power consumption, allowing long-term logging for longer than 1 year, even with permanently activated display. And an industrial-grade 4GB internal data memory will keep all your data even during long expeditions. The portable FireSting-GO2 oxygen meter is based on the established FireSting technology featuring:

  • Broad oxygen sensor portfolio (robust probes, microsensor, minisensor, flow-through cells, sensor spots with contactless read-out)
  • Sensors for the full and trace oxygen range
  • Measurements in gas (%O2) and water (DO)
  • Automatic temperature and pressure compensation
  • Proven REDFLASH technology

Innovative REDFLASH technology. The REDFLASH technology from PyroScience is based on the unique analyte-sensitive REDFLASH sensor materials. The REDFLASH sensor materials are excitable with red light and show an analyte-dependent luminescence in the near infrared (NIR). The REDFLASH technology impresses by its high precision, high reliability, low power consumption, low cross-sensitivity, and fast response times. The red light excitation significantly reduces interferences caused by autofluorescent samples. Further, the NIR detection technology significantly reduces interference with ambient light, known from the old blue-light techniques.

Supported analytes. This meter is compatible to a broad range of optical oxygen sensors. Our optical temperature and pH sensors are not supported. External Pt100 temperature probes for temperature compensation are supported and can be connected to the LEMO-connector of this device.

Laboratory device. This plug & play solution comes with a standard USB connection and a free Windows logging software.

Versatile PC software. The FireSting-GO2 Manager software (Windows) is used for downloading and analysing the logged data from the device. Moreover, this software allows to control the device (adjusting settings, calibration, start/stop logging) without using the user interface of the FireSting-GO2. Go to the Downloads tab for downloading the newest installer.

Optical channel. This meter features one optical channel with a ST-connector, compatible to a broad range of fiber-optic and contactless sensors. The optical sensor of your choice must be purchased separately.

Temperature port. This device is equipped with a LEMO-connector for Pt100 temperature probes, which can be used for automatic temperature compensation of optical sensor measurements, or simply for logging temperatures in liquids and gases.

High contrast display and silicone buttons. The high contrast display in combination with the silicone buttons offers an intuitive user interface, which allows for a complete stand-alone operation of the device. In fact, only for the final download of the logged data you will need to connect the device to a USB port of your PC. The display features ultra-low power consumption, as a result it is permanently enabled even during long-term logging. You will always keep an eye on your actual oxygen measurement.

Stand-alone logging. Log your data (up to >1 year) without a connection to a PC with this stand-alone long-term logger. After the experiment, download the data with our included versatile Windows software for data processing.

Huge data memory. This device comes with a built-in data memory of 4GB of industrial grade for ca. 40 million data points, offering virtually unlimited data memory even during long expeditions. 

Charging via micro-USB. The micro-USB port can be used for recharging the internal battery with any standard recharger and/or computer USB port.

Integrated pressure and humidity sensors. All FireSting devices come with integrated sensors for atmospheric pressure (mbar) and relative humidity (%RH) of the ambient air for a user-friendly precision calibration procedure in water or ambient air. The integrated pressure sensor can be used for automatic pressure compensation of oxygen measurements performed e.g. in units of %oxygen, %air saturation or in DO concentration units (µmol/L, mg/L). These oxygen units show a strong dependence on atmospheric pressure changes (weather changes, altitude). Automatic pressure compensation is integrated seamlessly into the included innovative logger software / user interface. 

Oxygen Fiber Sensors

Every PyroScience oxygen fiber sensor with ST-connector is compatible to this read-out device. Select additional requirements to find the optimal fiber sensor for your application!

Oxygen Contactless Sensors

Most contactless oxygen sensor are compatible to this read-out device. Use this link to get an overview. Select additional requirements to find the optimal contactless sensor for your application!

Temperature Pt100 Probes

Electrical Pt100 temperature probes can be connected via the LEMO-connector to this meter. Use this link to get a list of all compatible probes.

Exemplary Setup


Choose the pocket oxygen meter FireSting-GO2 with the fairly priced fiber-optic oxygen sensor kit OXKIT‑FOP.

  • Try out our fiber sensor options

Exemplary Setup


Choose the pocket oxygen meter FireSting-GO2 with the fairly priced contactless oxygen sensor kit OXKIT‑CTL.

  • Try out our contactless sensor options

Exemplary Setup


Choose the pocket oxygen meter FireSting-GO2 with the top seller OXROB10.

  • Ready-to-go set-up 
  • For O2 gas + DO measurements

Exemplary Setup


Choose the FireSting-GO2 with the solvent resistant oxygen probe OXSOLV.

  • Suitable for many polar and nonpolar pure or complex organic solvents

Exemplary Setup


Choose the FireSting-GO2 with the retractable needle-type oxygen sensors OXR50.

  • Retractable 50-70µm sensor tip
  • Microsensor for small samples 

Exemplary Setup


Choose the FireSting-GO2 with the contactless oxygen sensor spots OXSP5.

  • For measurements in closed containers (0-2mm wall thickness)

Fiber-Optic Oxygen Sensor Kit


This starter kit contains:
1 x Retractable microsensor OXR50
1 x Fixed minisensor OXF1100
1 x Robust probe OXROB10

0% O2 Calibration Capsules 


For recommended 0% O2 calibration of optical oxygen sensors. Each capsule results in 50mL calibration solution (PU=10).

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