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Electrochemical carbon monoxide (CO) Sensor for commercial applications

NE4-CO-SI carbon monoxide gas sensor


Detectable Gas:

Detection range:

Maximum overload:

Output current:

Zero Offset (20°C)


Output drift in air:

Response time (90%):

Temp. depend. in air:

Expected lifetime:

Carbon Monoxide (CO)

0 – 1000 ppm

2000 ppm

50 +/- 10 nA/ppm

<5ppm equivalent

+/- 2%

less than 5 ppm

< 30 seconds

<10ppm (-20 to 50°C)

>2 years

Operating Conditions

Operating temperature:

Humidity range:


Recommended resistor:

Bias voltage:

-20 +50 degrees C

15 – 90% RH

0.9 – 1.1 atm

10 ohms

Not required

General Description:

The NE4-CO-SI is a low cost electrochemical gas sensor with 3 electrodes for the detection of Carbon Monoxide (CO) in a variety of industrial and commercial gas detection applications. Exhibiting high performance with long-term stability, this compact (20.4mm dia) sensor is suitable for Portable Gas Detection Instruments or Fixed Gas Detection heads.

Nemoto's porous electrode technology enables accurate gas detection with high sensitivity. The NE4-CO-SI has been developed as a lower cost alternative to the

NE4-CO sensor for use in more cost sensitive applications such as underground

Car-Park monitoring systems.

  •        3-Electrode design for greater stability

  •        Compact, leak-proof enclosure

  •        Resistant to shocks and vibration

  •        Linear output

  •        Highly specific to target gas

  •        Unaffected by humidity

  •        Low Power consumption

  •        Very Low Long term drift

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