Multi-Channel O2 Meter for Use with Numerous Sensor Designs

OXY-4 ST (G3)

Due to its small outer dimensions OXY-4 ST can be set up almost anywhere. It can be used with microsensors (230 µm fiber) in different designs, non-invasive sensors, dipping probes and flow-through cells (1 mm fiber). This makes it the ideal tool especially for benchtop applications. OXY-4 ST is compatible with sensor type PSt7 (detection limit 15 ppb, 0 - 100 % oxygen). This USB-powered oxygen meter is operated with the PreSens Measurement Studio 2 software and offers separate temperature compensation for each channel. The software has numerous features, offers additional pressure and salinity compensation and allows controlling several single and multi-channel meters simultaneously. This oxygen meter is the solution for most precise micro-invasive or non-invasive oxygen measurements.

  • Measurement range of max. 0 - 100 % oxygen
  • For use with microsensors, dipping probes, non-invasive spots & FTCs
  • USB-powered
  • Controlled by PreSens Measurement Studio 2
  • Compensation of temperature, pressure & salinity
  • Small outer dimensions
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Oxygen sensors PSt7 (optical ST connector)
Temperature sensor 4 x Pt100 temperature connection (sensor not included)
Temperature performance From 0 °C to + 50 °C, resolution ± 0.1 °C, accuracy ± 1.0 °C
Power supply Supply voltage: 5 VDC (USB-2.0-Mini-B), current/power: 400 mA
Temperature: operating / storage From  0 °C to + 50 °C / - 20 °C to + 70 °C
Relative humidity From 0 to 80 % (non-condensing)
Dimensions (L x W x H) 164 mm x 85 mm x 50 mm
Weight 417 g
Digital interface USB interface cable to PC, cable included


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