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Pocket Oxygen Meter - FireStingGO2

  • With Display and Data Logging
  • Intuitive user interface
  • Compact (68 x 120 x 30 mm)
  • Integrated rechargeable battery for long-term logging up to 1-2 years
  • Data memory for 40 million data points
  • Versatile data management software
  • Works with robust probes, flow-through-cells, microsensors, minisensors, respiration vials, sensor spots...
  • Works with full range and trace range sensors
  • Works in gas (%O2) and in liquids (DO)

Simplify and Boost Your Field and Lab Research

Based on the successful FireStingO2 technology we developed the pocket oxygen meter FireStingGO2, coming with high-contrast display, integrated rechargeable 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. Moreover, the FireStingGO2 offers most of all the other versatile features of the proven FireStingO2 series.


Oxygen Port. It comes with an ST-connector compatible to a broad range of fiber-optic oxygen sensors and contact-less oxygen sensors. The oxygen sensor of your choice must be purchased separately.
Here you can see our range of oxygen sensors.

Temperature Port. It also comes with a Lemo-connector for PT100 temperature sensors which can be used for automatic temperature compensation of the oxygen measurement, or simply for logging temperatures in liquids and gases.
Here you can see our range of temperature sensors.

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.

Integrated rechargeable battery. The FireStingGO2 comes with a powerful integrated lithium ion polymer battery, supporting a reliable stand-alone operation. You will be astonished how seldom the FireStingGO2 needs to be recharged. Typical laboratory usage (3h operation per day with 2s sample interval) requires recharging only after several months!

Life Measurements. Connect the oxygen sensor type of your choice, enter the sensor code, perform a quick 1-point or a precision 2-point calibration, and the display will immediately show the measured oxygen levels, temperature, humidity, and air pressure.

Long-term Logging. Start data logging of oxygen, temperature, humidity and air pressure via the intuitive user interface. Choose the logging interval (1s - 4h) and the logging duration (1min - nonstop) and let the FireStingGO2 do the job. Leading-edge technology with ultra-low power consumption offers unsurpassed logging durations without recharging the battery. At 1s logging interval a fully charged battery will typically last for >1 week, at 10s logging interval typ. > 2 months, and at 10min logging interval typ. >1 year! If this is not enough for you, simply connect an external power bank to the micro USB port of the FireStingGO2, which will scale up the maximum possible logging durations even more.

Huge data memory. The FireStingGO2 comes with a built-in data memory of 4GB of industrial grade giving space for ca. 40 million data points. This huge data memory will offer you virtually unlimited data memory even during long expeditions. Even if you log at 1s logging intervals, you will not have filled up this huge data memory after 1 year of around-the-clock operation!

Versatile PC software. The FireStingGO2 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 FireStingGO2.

Micro USB port. The micro USB port can be used for recharging the internal battery with any standard recharger and/or computer USB port  and for data communication with the versatile "FireStingGO2 Manager" software (Windows).

Innovative REDFLASH Technology. The REDFLASH technology from Pyro Science is based on the unique oxygen-sensitive REDFLASH dyes. In contrast to common techniques using blue-light excitation, the REDFLASH dyes are excitable with orange-red light and show an oxygen-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 orange-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.

Integrated Pressure and Humidity Sensors for Easy Calibration. The FireStingGO2 device comes with integrated sensors for atmospheric pressure and relative humidity of the ambient air, which are important parameters for precision calibrations of oxygen sensors. This offers an user-friendly and fail-safe calibration procedure at ambient air, as the relevant pressure and humidity values are measured automatically.

Automatic Pressure Compensation. The integrated pressure sensor is used additionally for automatic pressure compensation of oxygen measurements performed e.g. in units of %O2 or %air sat. These oxygen units show a dependency on atmospheric pressure changes (weather changes).


Available Items

Item No. Description Pricing
in EU*
FSGO2 FireStingGO2, pocket oxygen meter with integrated rechargeable battery, LCD display, and logger functionality, package includes: device, silicone shell, lab stand adapter, USB-cable, "FireStingGO2 Manager" software download (Windows), transport case on request
OXKIT‑FOP Starter Kit I with Fiber-Optic Oxygen Sensors (OXR50, OXF1100, OXROB10). The instrument is not included. 490 €
OXKIT‑CTL Starter Kit II with Contactless Oxygen Sensors (OXFTC, OXSP5, SPFIB, SPADBAS, OXVIAL4, ADVIAL4). The instrument is not included. 350 €

* Only EU-Prices shown. Contact us for pricing outside EU. Not for resale.


More details…

For each purchased instrument we offer starter kits including the most popular oxygen sensors:


Starter Kit I with Fiber-optic Oxygen Sensors
(item no. OXKIT-FOP, max. 1 per instrument)

1x retractable microsensor (OXR50)
1x fixed minisensor (OXF1100)
1x robust probe (OXROB10)


Starter Kit II with Contactless Oxygen Sensors
(item no. OXKIT-CTL, max. 1 per instrument)

1 pc. oxygen sensor flow through cell (OXFTC)
1x sensor spots (OXSP5) (including 8 spots)
1x spot fiber (SPFIB)
1 pc. basic spot adapter (SPADBAS)
1 pc. 4ml respiration vial (OXVIAL4)
1 pc. adapter ring for respiration vial (ADVIAL4).

Less details…

Available Sensors

This instrument can be combined with the following sensor types:
Optical Oxygen Sensors
Pt100 Temperature Sensors


For sensor specifications and response times, please refer to the webpages of the different sensor types.

Weight 150 g
Dimensions 52 x 97 x 20 mm
Oxygen sensor connector Fiber-optic ST-connector
Input Channels 1 for fiber-optic oxygen or temperature sensors
1 for Pt100 temperature sensor
Measuring Principle Lifetime detection of REDFLASH luminescence via fiber-optics
Excitation Wavelength 620 nm (orange-red)
Emmission Wavelength 760 nm (NIR)
Operating / storage temperature -10° - 50ºC / -20 - 70ºC
Max rel. humidity Non condensing conditions
Temperature sensor
(range / resolution / accuracy)
-30°C-150°C / 0.02°C / ±0.5°C
Pressure sensor
(range / resolution / accuracy)
300-1100mbar / 0.06mbar / typ. ±3mbar
Humidity sensor
(range / resolution / accuracy)
0-100%RH / 0.04% RH / typ. ±0.2%RH
Integrated battery Rechargeable lithium ion polymer battery
Battery charging Via USB, fully charged after 2 ca. hours
Internal Memory Industrial grade 4GB, ca. 40 million data points
Max. sampling rate 1 sample per seconds
Typ. Data File Size ca. 100 bytes per data point
Typ. Stand-Alone Logging Time ca. 1 week for 1 s logging interval
ca. 2 months for 10 s logging interval
ca. 6 months for 1 min logging interval
ca. 1-2 years for 10 min logging interval
System requirements USB, Windows 7/8/10
Data Managemant Software FireStingGO2 Manager