CO2 sensor Carbon dioxidedetection transmitter for Greenhouse output 4-20mA/RS485

NBL-W-CO2 carbon dioxide sensor adopts imported sensor chip, which is used to detect the concentration of CO2 in various environments, and has the characteristics of high precision and good stability. 

The signal transmitter adopts advanced integrated circuit modules, which can output voltage, current and other signals according to the different needs of users. The instrument is small in size, easy to install, and reliable in performance; it adopts proprietary line, which has good linearity, strong load capacity, long transmission distance and strong anti-interference ability. This product can be widely used in the detection of carbon dioxide concentration in office buildings, public places, greenhouses, production plants and other places.

technical parameter：                     

Range: 0～5000ppm

Accuracy: ±(50ppm+3% reading)

Resolution: 1ppm

Power supply mode: DC 12V-24V

Output form:  4～20mA/ RS485

Instrument cable length: 2.5 meters

Load resistance: Current type: RL≤250Ω

Working temperature: -10℃～50℃

Relative humidity: 0～100%

Product weight: 140g

Product power consumption: 0.2W

Calculation formula：

Current type (4～20mA output):

C=(I-4)/16 × 5000

(C is the measured carbon dioxide concentration value (ppm), I is the output current (mA))

How to choose a carbon dioxide sensor supplier

Generally speaking, the choice of suppliers should clearly understand their own criteria, such as whether the carbon dioxide sensor supplier is qualified, whether the production and supply of products have a team for the corresponding control.

What are the advantages of carbon dioxide sensor suppliers, only clearly know their own criteria in order to choose the right partner.

What are the principles of carbon dioxide sensors

Carbon dioxide sensor principle there are many, mainly depends on the carbon dioxide sensor with which technology line and components. Currently on the market are (photoacoustic spectrum) sensors, NDIR (non-dispersive infrared) sensors, EC (electrochemical) carbon dioxide sensors, (photoacoustic) sensors and other components, as the name suggests, the use of which components can basically confirm which carbon dioxide sensor technology line is used, corresponding to the principle of what is used.

Carbon dioxide sensor At present, there are many different types of carbon dioxide sensor products in smart agriculture, intelligent buildings, smart homes, etc. in the application.