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Wall Mounted CO2 Sensor

* Detecting range: 0-2000 PPM,

Other range customizable.

* Detecting accuracy: 3%, 5%.

* Output: 4-20mA, 0-10V,0 -5V, RS485/RS232.

Relay output customizable.

* Sensor element: Non-Dispersive Infrared (NDIR),

with ABC self-calibration function.

* LCD display: optional.

* Power supply: 24 Vac/dc


The CO2 sensor uses high-precision sensor elements and high-performance digital circuit technology to measure the concentration of CO2. Various power supply modes and output signals can be chosen. Featured with high-accuracy and outstanding long-term stability. LCD display is optional as required.

The sensing element uses the latest technology of Non-Dispersive Infrared (NDIR). The sensor is suitable for measuring indoor air quality for human occupied space, agricultural and industrial space where to maintain a desired range of CO2 concentration. The output signal can be used by building automation system.



* High accuracy sensing element, fast responding and long term stability.

* Service life of CO2 sensing element exceeds 15 years.

* Easy installation and modern design.

* Options of shape and dimension to suit for various installation.

* High resolution LCD screen displayer optional.

* Multiple signals output for different system.

* Superior protection for reverse voltage and overvoltage.

* Excellent reliability and anti interference performance.

* Suitable for detecting CO2 concentration indoor room and duct in HVAC systems.

* OEM (Original Equipment Manufacturer) or ODM (Original design manufacturer) at request.


Sensor elementNon-Dispersive Infrared (NDIR), with ABC self-calibration function
Sensing principleDiffusion sampling
Detecting range0-2000PPM
Detecting accuracyshown in below table
Sensor coverage area20 m2  as recommended
Output signal4-20mA, 0-10V, 0-5V, RS485 / RS232 (MODBUS RTU)
Baud rateLocally set to 9600
Mounted height1.2~1.8m above ground for wall mounting
Response timeT90  ≤ 10s (30cc / min, low air velocity)
Warm-up time<180s
Drift<+/- 10 PPM per year
Calibration intervalself calibrate per 7 days
Power supply24V DC/AC
Working environment-10~50 deg C & 0~95%RH, non-condensing air
Storage environment-20~80 deg C & 0~95%RH, non-condensing air
Casing materialABS plastic for wall mounted type, ABS plastic + PC for duct mounted type
Protection classwall mounted type IP 30, duct mounted type IP 65
Fire-resistancetested as per UL94-V0
Displayback light LCD (optional)


Ordering Information
 TypeSpanOutput SignalOptional
CES2000-B2…… Room

D2…… Duct

0…… 0-2000PPM, ±50PPM ±5%

1…… 0-2000PPM, ±50PPM ±5%

2…… 0-2000PPM, ±50PPM ±5%

D…… Customized

0…… 4-20mA / 0-10V

1…… RS485


0…… None

1…… LCD display

2…… Relay

3…… LCD display + Relay

* Structure:


Detailed Images



* More products you may be interested:



Delivery Options:

Delivery Method
Incoterms Term
Applicable Countries
LCL, FCL by sea
General for all countries.
Air courier to door
General for all countries.
Air cargo to airport
General for all countries.
Door to door by road
Cambodia, Laos, Myanmar, Thailand, Vietnam. (keep expanding to more countries)
Door to door by seaDDU, DDPCambodia, Indonesia, Malaysia, New Zealand, Philippines, Singapore, Thailand, United Arab Emirates, United Kingdom, United States.   (keep expanding to more countries)
LCL=Less than Container Load.     FCL =Full Container Load
DDU = Delivery Duty Unpaid        DDP = Delivery Duty Paid
The above shipping information is general, and changing from time to time. Confirmation with us is necessary for each order.

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Payment Options:
  • T/T (Telegraphic Transfer)
  • L/C (Letter of Credit)
  • Western Union
  • Alibaba Trade Assurance (Alipay)