Product Details
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CO-A4/CO-A4+ Carbon Monoxide Sensor

The CO-A4 sensor is a PPB sensor that is designed for industrial safety and environmental air quality applications with best-in-class baseline stability. The A series is the most widely used sensor format for portable gas detection applications. This product is available in our standard format (CO-A4) and with our patented Integrated Smart Technology (CO-A4+) that has an IST board with a memory chip and temperature sensor integrated in the sensor. The + sensors store specific calibration, specification, and identification

data on every sensor allowing plug and play operation. The on-board temperature sensor improves the accuracy and simplicity of temperature compensation algorithms.

Sensor Data

Performance

Sensitivity

Response time

Zero current

Noise*

Range

Linearity

Overgas limit

nA/ppm in 2ppm CO

t90 (s) from zero to 10ppm CO nA in zero air at 20°C

±2 standard deviations (ppb equivalent)

ppm limit of performance warranty

ppm CO error at full scale, linear at zero, 15ppm CO maximum ppm for stable response to gas pulse

220 to 410

< 30

-100 to +10

500

< ± 1

2000

"Tested with Alphasense AFE low noise circuit

Lifetime

Zero drift Sensitivity drift Operating life

ppb equivalent change/year in lab air

% change/year in lab air, monthly test

months until 50% original signal (24-month warranted

< ±100

< 10

> 36

Environmental

Sensitivity @ -20°C Sensitivity @ 50°C Zero @ -20°C

Zero @ 50°

(% output @ -20°C/output @ 20°C) @ 5ppm CO (% output @ 50°C/output @ 20°C) @ 5ppm CO nA change from 20°C

nA change from 20°C

50 to 85

110 to 125

10 to 40

-120 to -200

Cross Sensitivity

Filter capacity H2S sensitivity NO2 sensitivity CL2 sensitivity NO sensitivity

SO2 sensitivity H2 sensitivity C2H4 sensitivity NH3 sensitivity

ppm·hrs H2S

% measured gas @ 5ppm H2S

% measured gas @ 5ppm NO2

% measured gas @ 5ppm CL2

% measured gas @ 5ppm NO

% measured gas @ 5ppm SO2

% measured gas @ 100ppm H2 at 20°C

% measured gas @ 100ppm C2H4

% measured gas @ 20ppm NH3

250,000

< 0.1

< -2

< 0.1

< -2

< 0.1

< 50

< 0.5

< 0.1

Key Specifications

Temperature range Pressure range

Humidity range

Storage period

Load resistor

Weight

°C

kPa

% rh continuous

months @ 3 to 20°C (stored in sealed pot)

Ω (AFE circuit is recommended)

-30 to 50

80 to 120

15 to 90

33 to 100

< 6

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Categories	Gas Detector Sensor
Brand Name:	KACISE
Model Number:	CO-A4/CO-A4+
Certification:	CE
Place of Origin:	CHINA
MOQ:	1PCS
Payment Terms:	L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability:	1000 Piece/Pieces per Week negotiable
Delivery Time:	5-8 work days
Packaging Details:	each unit has individual box and all boxes are packed in standard packages or customers requests available
Sensitivity:	220 to 410
Response time:	< 30
Zero current:	-100 to +10
Noise*:	20
Linearity:	< ± 1
Overgas limit:	2000

CO-A4/CO-A4+ Carbon Monoxide Sensor

CO-A4/CO-A4+ Carbon Monoxide Sensor

CO-A4/CO-A4+ Carbon Monoxide Sensor

Sensor Data

CO-A4 Carbon Monoxide Sensor

CO-A4+ Carbon Monoxide Sensor

CO-A4/CO-A4+ Carbon Monoxide Sensor

CO-A4/CO-A4+ Carbon Monoxide Sensor