Table 4.

Commercially available oxygen sensors.

Principle	Sensor		Range/Accuracy	Ref.
Paramagnetic Cells Technology	Paramagnetic O2 Analyser		Different ranges available: 0–2%, 0–10%, 0–30%, 0–100%, 98–100% and 20–22%.	[203]
Optical	Mettler Toledo	Optical Dissolved Oxygen Sensors	8 ppb to 25 ppm with accuracy ±1%	[204]
	PreSens Oxygen Sensors	OXY-4 SMA (G3)	0–100% O2detection limit 15 ppb dissolved oxygen	[205]
		Self-adhesive Oxygen Sensor Spot SP-PSt3-SA	0–100% O2 Dissolved O2: 0–45 mg/L Accuracy ±0.4% O2 at 20.9% O2
		O2 Flow-Through Cell FTC-PSt3	Dissolved O2: 0–45 mg/L ± 0.4% O2 at 20.9% O2
Electrochemical	Polarographic Dissolved Oxygen Sensors		0–10.000 ppb Accuracy ± 1%	[204]