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Smart Home 3 in 1 CO2 Transmitter With Non - Dispersive Infrared Sensor , ISO9001

Tongdy Sensing Technology Corporation
Tongdy Sensing Technology Corporation
City: Beijing
Province/State: Beijing
Country/Region: China
Tel: 86-10-59738930
Contact Person:
Mr Michael Zhang

Smart Home 3 in 1 CO2 Transmitter With Non - Dispersive Infrared Sensor , ISO9001

Brand Name : TONGDY
Model Number : G01-CO2-B
Certification : CE/ ISO9001
Place of Origin : China
MOQ : 10pcs
Price : US$20~200
Payment Terms : T/T, Paypal
Supply Ability : 3000pcs per month
Delivery Time : Depends on order quantity
Packaging Details : Carton
Product Name : 3 in 1 CO2 Transmitter
Display : 3-color LCD or monochromatic LCD or without LCD
Output : Up to 3 analog outputs, Modbus
Sensor module : Imported NDIR CO2 sensor
Application : HVAC, BAS, AHU etc.
Optional : Bacnet MS/TP
Detection : CO2, temperature & relative humidity
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Carbon Dioxide

Sensing element

Non-Dispersive Infrared Detector (NDIR)

CO2 measuring range

0~2000ppm/ 0~5,000ppm optional

CO2 Accuracy @22℃(72℉)

±40ppm + 3% of reading or ±75ppm (whichever is greater)

Temperature dependence

0.2% FS per℃


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

Pressure dependence

0.13% of reading per mm Hg


ABC Logic Self Calibration Algorithm

Response time

<2 minutes for 90% step change typical

Signal update

Every 2 seconds

Warm-up time

2 hours (first time) / 2 minutes (operation)



Measuring range

0℃~50℃(32℉~122℉) (default)

0 ~100%RH


±0.4℃ (20℃~40℃)

±3%RH (20%-80%RH)

Display resolution






General Data

Power supply



1.8 W max. ; 1.2 W avg.

Analog outputs

1~3 X analog outputs

0~10VDC(default) or 4~20mA (selectable by jumpers)

0~5VDC (selected at placing the order)

Modbus communication (optional)

RS-485 with Modbus protocol, 19200bps rate, 15KV antistatic protection, independent base address.

Operation conditions

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

Storage conditions

10~50℃(50~122℉), 20~60%RH non condensing

Net Weight





wall mounting with 65mm×65mm or 2”×4”wire box

Housing and IP class

PC/ABS fireproof plastic material, protection class: IP30




1. Real time carbon dioxide detection and transmitting

2. High accuracy Temperature and humidity detection

3. NDIR infrared CO2 sensor with patented self calibration

4. Provide 3xanalog linear outputs for measurements

5. Optional 3-color LCD or monochromatic LCD display

6. Modbus RS485 interface optional

7. 0~2000ppm CO2 measuring range default, 0~5000ppm selectable

8. 24VAC/VDC power supply

9. CE-approval

10. Duct mounting type optional

11. Bacnet MS/TP optional



2. Building ventilation systems

3. Industry ventilation systems

4. Airport, train station, shopping mall, office, classroom and other public places for air quality measurement and indication

5. Lab., warehouse, and other places to detect CO2+Temp. +RH%

6. All other ventilation systems

Mounting and Dimension

Models Guide

G01-CO2-B X 0 C –Y 0 ZU 02/05 –T/TH –Txx

X: LCD or no LCD

1- Without LCD, 24VAC/VDC power supply

3- LCD display, 24VAC/VDC power supply

C: 24VAC/VDC power supply

Y: analog output quantity

3-3Xanalog outputs (for CO2, temperature, humidity)

2-2Xanalog outputs (for CO2, temperature)

1-1xanalog output (for CO2)

0-no analog output

Z: Modbus communication

1-with Modbus communication

0-no Modbus

U: type of analog output

V- 0~10VDC (default)

A- 4~20mA

V5- 0~5VDC (not be changed)

02/05: CO2 range

02- 0~2000ppm

05- 0~5000ppm

T/TH: temperature option/ temperature and humidity option

Txx: temperature scaling

T05: 0℃~50℃(32℉~122℉) default (without the postfix indicates the default)

T06: 0℃~60℃(32℉~140℉)

T26: -20℃~60℃(-4℉~140℉)

Accessory (selectable at placing the order)

921: back plate for wall mounting

921+922: desktop bracket

Example: G01-CO2-B30C-301-V02-TH-T05 indicates that it detect CO2, temperature and RH%, wall mount, with 3-color LCD display, 3×0~10V output (4~20mA selectable via jumpers), Modbus RS485 interface, 0~2000ppm CO2 measuring range, 0~50C temperature measuring range, 0~100%RH measuring range. 24VAC/VDC power supply.

Wiring Diagram


Q: 1. Can I have a sample order?
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
Q:2. How do you ship the goods and how long does it take arrive?
A: for samples, We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive.
for cargos, you can choose sea or airline service by your needs.
Q: 3. How about the delivery term?
A: For samples we have stock, we can send out units upon receiving payment.
For samples we do have stock, it need 5~10 days.
For bulk order, the delivery date is about 10~20 working days, which also depends on the quantity.

Product Tags:

carbon dioxide detector


carbon dioxide sensor

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