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Oxygen（O2）Gas Sensor - AO2

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• Molex Connector
• Linear Output from 0-100% Oxygen

Model Number: AO2
Data Sheet:

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Product Specification

AO2 Oxygen Gas Sensor Key Features and Benefits：

• Molex Connector

• Linear Output from 0-100% Oxygen

AO2 Oxygen Gas Sensor Technical Specifications：

MEASUREMENT
Operating Principle	Partial Pressure Electrochemical
Measurement Range	0-100% O₂
Output*	9 - 13 mV in Air
Response Time (T₉₀)*	<5 s
Response Time (T_99.5) ^{See Note 1*}	<40s
Baseline Offset*	<20 µV
Linearity	Linear 0-100% O₂
ELECTRICAL
On Board Temperature	<2% O₂ equivalent
Compensation	variation from 0°C to 40°C
External Load Resitor	10 kΩ Minimum
Connector	3 Pin Molex header(MOLEX 22-29-2031)
Recommended Mating Part	Molex 3-Way Housing(MOLEX 22-01-2035) Molex Crimp Terminals(MOLEX 08-45-0110)
MECHANICAL
Weight	40 g (nominal)
Housing Material	Red ABS
Orientation	Any
ENVIRONMENTAL
Typical Application	Vehicle Exhaust Analysis
Operating Temperature Range	-20°C to +50°C
Operating Pressure Range	0.5 - 2.0 Bar
Differential Pressure Range	0 to 500 mBar max
Operating Humidity Range	0 - 99% RH non-condensing
LIFETIME
Long Term Ouput Drift in 100% O₂	<10% signal loss/year
Expected Operating Life	360,000% O2 hours at 20°C 286,000% O2 hours at 40°C or 2 years in air at STP.
Packaging	Sealed blister

Note 1: T_99.5 Response is equivalent to a change in concentration fom 20.9% O₂ to 0.1% O₂

* Specifications are valid at 20°C, 50% RH and 1013 mBar, using City Technology recommended circuitry. Performance characteristics outline the performance of sensors supplied within the first 3 months. Output signal can drift below the lower limit over time.

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