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Oxygen Sensor (O2 Sensor) Lead-free 3-Electrode - LFO2-A4

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• Output: 90 to 120 μA @ 20.9% O2
• Response time t90: < 15 (s) from 20.9% to 0 % O2
• Linearity: < 0.10 % O2 deviation @ 10% O2
• Operating life: > 48 months
• Temperature range: -30 to 50 ℃
• Pressure range: 80 to 120 kPa
• Humidity range: 5 to 95 % rh continuous
• Weight: < 6g

Model Number: LFO2-A4
Data Sheet:

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Product Specification

LFO2-A4 Oxygen Sensor (O2 Sensor) Description
Alphasense Oxygen sensors use capillary flow control.

Unlike partial pressure oxygen sensors, they have good pressure and temperature dependence, making them the best choice in safety applications.

Standard galavanic sensors use lead for greatest reliability but fixed lifetime. The new LFO2-A4 lead free A-series sensor requires continuous biasing but offers longer lifetime.

LFO2-A4 Oxygen Sensor size:
20mm diameter, the industry standard size for portable gas detectors

LFO2-A4 Oxygen Sensor (O2 Sensor) PERFORMANCE
Output	μA @ 20.9% O2	90 to 120
Response time	t90 (s) from 20.9% to 0 % O2	< 15
Linearity	% O2 deviation @ 10% O2	< 0.10

LFO2-A4 Oxygen Sensor (O2 Sensor) LIFETIME
Sensitivity @ -20℃	% (output @ -20℃/output @ 20℃)	80 to 90
Sensitivity @ 50℃	% (output @ 50℃/output @ 20℃)	105 to 115
Output drift	% change in output @ 3 months	< 1
Operating life	months until 85% original output of 20.9% O2	> 48

LFO2-A4 Oxygen Sensor (O2 Sensor) KEY SPECIFICATIONS
Temperature range	℃	-30 to 50
Pressure range	kPa	80 to 120
Humidity range	% rh continuous (0 to 99 %rh short term)	5 to 95
Storage period	months @ 3 to 20℃ (store in sealed pot, open circuit)	6
Bias voltage	mV	-600
Diameter	mm (including label)	20.0
Height	mm (including foam ring)	17.4
Weight	g	< 6