Xiamen Hysen Imp&Exp Co., Ltd.

Digital CO2 Monitor and Controller

Digital CO2 Monitor and Controller
Product Detailed

1)CO2 monitor mulitplecontrol function
2)wall mounting type
3)Bulit in pump
4)LCD display both CO2 level and temperature

Digital CO2 Monitor and Controller 

1, Feature:

1) CO2 monitor multiple control functions and high performance with low price

2) Application in all ventilation systems, or public places

3) Wall mounting type and duct type selectable

4) Built-in pump type for some special applications

5) LCD display detecting both CO2 level and temperature, also relative humidity (optional)

6) NDIR infrared CO2 sensor with special ABC_Logic Self Calibration System and 15 years long lifetime. It makes the CO2 measurement more accurate and more reliable.

7) Specially provide the altitude calibration

8) Microprocessor control, quick response, high precision

9) Providing strong control outputs with up to three 0~10V analog outputs and three relay dry-contact outputs   

10) The analog output with two alternatives: PID control output or linearized over full range output

11) Different control mode for delays selected by users applications such as ventilation systems or greenhouses

12)  Locale adjustable range of CO2: 0~2,000ppm/0~5,000ppm/20,000ppm/ 0~50,000ppm;

 adjustable range of temperature: 5~45adjustable range of humidity595%RH 

13) RS-485 communication interface optional, 15KV antistatic protection, independent base address setting

14) Specially provide a simple CO2 controller with 6 indicator lights and a relay output to control a fan

15) CE-Approval

2, Description:

Gas detected

Carbon Dioxide (CO2)

Sensing element

Non-Dispersive Infrared Detector (NDIR)

Temperature sensor


Humidity sensor

HS series capacitive sensor

Temperature dependence

0.2% FS/

Temperature correction

Self compensation

Power supply

220VAC, 110VAC or 24VAC, 50/60HZ±10%, selectable with the order


3.5 W max. ; 2.5 W avg.


±40ppm + 3% of reading


<2% of FS over life of sensor (15 yr typical)

Calibration interval

ABC Logic Self Calibration Algorithm

Non linearity

<1% of FS

Pressure dependence

0.13% of reading per mm Hg

Altitude calibration

Programmable from 0-9,900m in 100m increments

Response Time

<2 minutes for 90% step change

Signal update

Every 2 seconds

Warm up time

24 hours (first time)

5 minutes (operation)

CO2 measuring range

02,000ppm (default)

020,000ppm, programmable selection


CO2 setting & Display resolution


Temperature measuring/ setting range

050(32122)/  545(41113)

Humidity measuring/setting range

099%RH/ 595%RH

Analog output

010VDC linearized output or PID control output, selectable by end users

Output resolution


Relay output

One or two dry contact outputs with programmable selection to control CO2, temperature, humidity

Rated switching current: 3A(220VAC/30VDC), resistance load

Communication interface

RS-485, 9600/14400/19200(default)/28800 or 38400bps (programmable selection), 15KV antistatic protection, 3 independent base address, max network node 64

Flow rates

Diffusion version 80 ~ 120 cc/min

Flow through version 40~50cc/min

Operation conditions

0~50(32~122); 0~95%RH, non condensing

Storage conditions


NDIR life

15 years





Installment standard

65mm×65mm or 2×4wire box

Interface connections

Maxi. 9 terminals

Wiring standard

wire section area<1.5mm2

Approval Standard


Programming and selection

Via internal jumpers and push-buttons on the panel






3, Picture:




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