Optical Oxygen & Temp Meter

FireStingO2 (FSO2-1)

  • 1-channel lab device
  • A broad range of different compatible sensors
  • Automatic temp & pressure compensation
  • Versatile logger software included
  • Analog outputs & auto-mode

Optical Oxygen Meter - FireStingO2

The compact FireStingO2 is a PC-controlled (USB) fiber-optic oxygen meter can be combined with the complete optical oxygen sensor and optical temperature sensor portfolio from PyroScience, ranging from microsensors (50 µm tip) to robust probes (3 mm tip), and including also diverse smart contactless sensor solutions. Most oxygen sensor types are available for the full O2 range and for a lower trace oxygen range (0-10%). Automatic temperature compensation of the oxygen measurements in samples with varying temperatures is possible with an optical temperature sensor connected to an optical channel or with a Pt100 temperature probe connected to the temperature port of the FireStingO2. With the included user-friendly logger software several FireStingO2 can be easily operated with a single PC in parallel.

Also available as 2-channel and 4-channel version.

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 and temperature sensors. Our optical pH sensors are not supported. External Pt100 temperature probes for temperature compensation can be connected to the LEMO-connector of this device and are supported.

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

Versatile PC software. The Pyro Oxygen Logger is used for setting up the device and calibrating the sensors. The measured values are displayd numerically and graphically and can be logged in respective datafiles for further data processing. The software is available for free in the Downloads tab.

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.

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 %O2, %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. 

Analog output. This device has 4 integrated analog outputs (0..2.5V), which can be configured and scaled with the included software. Optionally, each analog output can be also configured as an alarm output (e.g. for control tasks like observing a defined oxygen level in fish tanks).

Auto-Mode. This meter can be operated optionally without any PC connected inthe so-called auto-mode. Simply activate the auto-mode by connecting and powering the meter with a standard micro-USB charger (as used for mobile phones) The measured sensor data are read out via the analog output (or via the serial interface of the extension port).

LabVIEW library. For customer software solutions, a fully functional LabVIEW library and a respective communication protocol is available on request.  Just let us know.

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!

Optical Temperature Sensors

There are several optical temperature sensors compatible to this read-out device. Select additional requirements to find the optimal 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.


Choose the one channel oxygen meter FireSting O2 with the fairly priced fiber-optic oxygen sensor kit OXKIT‑FOP.

  • Try out our fiber sensor options


Choose the one channel oxygen meter FireSting O2 with the fairly priced contactless oxygen sensor kit OXKIT‑CTL.

  • Try out our contactless sensor options

FSO2-1 + OXROB10

Choose the one channel oxygen meter FireSting O2 with the top seller OXROB10.

  • Robust oxygen probe
  • Ready to go lab setup

FSO2-1 + OXR50

Choose the one channel oxygen meter FireSting O2 with the retractable fiber oxygen microsensor OXR50.

  • Retractable 50-70µm sharp sensor tip

FSO2-1 + OXSP5

Choose the one channel oxygen meter FireSting O2 with the oxygen sensor spots OXSP5 and all necessary accessories.

  • For measurements in closed containers

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).