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Oxygen Sensor (O2 Sensor) - O2-A3

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– 3 year warranty
– High-performance leak-free O2 Sensor
– Less than 2% change in output over 3 months
– T90 of less than 15 seconds
– < 0.7% Humidity affect
– < 0.1% CO2 Sensitivity
– Up to 99% humidity resistance

Model Number: O2-A3
Data Sheet:

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Product Specification

O2-A3 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.
O2-A3 Oxygen Sensorsize:
20mm diameter, the industry standard size for portable gas detectors

O2-A3 Oxygen Sensor O2 Sensor Features

O2-A3 Oxygen Sensor O2 Sensor Schematic Diagram

O2-A3 Oxygen Sensor O2 Sensor PERFORMANCE
Output	μA @ 22℃, 20.9% O2	55 to 85
Response time	t90 (s) from 20.9% to 0% O2 (47W load resistor)	< 15
Zero current	μA @ 99.99% N2, 22℃	< 2.5

O2-A3 Oxygen Sensor O2 Sensor LIFETIME
Output drift	% change in output @ 3 months	< 2
Operating life	months until 85% original output in 20.9% O2	> 36

O2-A3 Oxygen Sensor O2 Sensor ENVIRONMENTAL
Humidity sensitivity	% O2 change: 0% to 95% rh @ 40℃	< 0.7
CO2 sensitivity	% change in output / % CO2 @ 5% CO2	+ 0.1
Pressure sensitivity	(% change of output)/(% change of pressure) @ 20kPa	< 0.1

O2-A3 Oxygen Sensor O2 Sensor KEY SPECIFICATIONS
Temperature range	℃	-30 to 55
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 container)	6
Load resistor	Ω (recommended)	47 to 100
Height	mm (including foam ring)	17.4
Weight	g	< 16