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Optical Oxygen Meter - FireStingO2-Mini

  • Optical oxygen meter - OEM module
  • UART interface
  • 1 Oxygen port
  • 1 Temperature port
  • Dimensions 67 x 25 x 25 mm
  • Works in gas (%O2) and in liquids (DO)
  • Integrated humidity and pressure sensors
  • Analog outputs and auto-mode
  • Optional USB adapter cable



The 1 channel OEM module FireStingO2-Mini is based on the established FireSting technology  and intended for OEM applications. The technical performance of the FireStingO2-Mini is identical to the  USB-operated FireStingO2 with 1 oxygen port and 1 temperature port with two principle differences:

(1) Due to space limitations there is no dedicated connector for the external temperature sensor, but the cable of a temperature sensor (4-wire PT100) can be soldered directly to the FireStingO2-Mini.

(2) The FireStingO2-Mini has no integrated USB-port. It offers a standard UART interface for integration in custom electronics (details on request). However, we offer an optional USB adapter cable FSO2-MINI-USB including a licence for the Pyro Oxygen Logger software. When connected to this USB adapter cable, the FireStingO2-Mini can be comfortably configured and operated with a PC using the versatile Pyro Oxygen Logger software.

Available Items

Item No. Description Pricing
in EU*
FSO2-MINI-ST FireStingO2-Mini with ST-connector, 1 oxygen port, 1 temperature port, UART interface on request
FSO2-MINI-USB USB adapter cable for FireStingO2-Mini incl. licence for software "Pyro Oxygen Logger" 290 €

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

Available Sensors

This instrument can be combined with a broad range of oxygen sensor heads:
Oxygen Sensors


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

Weight 70 g
Dimensions (WxDxH) 67 x 25 x 25 mm
Oxygen sensor connector Fiber-optic ST-connector
Input Channels 1 for fiber-optic oxygen sensors, 1 for temperature sensor (solder points for Pt100)
Measuring Principle Lifetime detection of REDFLASH luminescence via fiber-optics
Excitation Wavelength 620 nm (orange-red)
Emmission Wavelength 760 nm (NIR)
Max. sampling rate 4 / 20 samples per seconds (with / without temperature compensation)
Power supply Max. 50mA at 3.5 - 5.0 VDC
Interface Serial interface (UART), ASCII communication protocol
Analog Output 4 independent analog outputs, 0-2.5VDC, 14 bit resolution
Operating / storage temperature 0-50ºC / -10-60ºC
Max rel. humidity Non condensing conditions
Temperature sensing principle 4-wire PT100
Temperature sensor
(range / resolution / accuracy)
-30°C-150°C / 0.02°C / ±0.5°C
Integrated pressure sensor
(range / resolution / accuracy)
300-1100mbar / 0.06mbar / typ. ±3mbar
Integrated humidity sensor
(range / resolution / accuracy)
0-100%RH / 0.04% RH / typ. ±0.2%RH