Carbon dioxide sensor CO2 detection transmitter 4-20mA/RS485 for Intelligent Agricultural IoT

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))

Smart agriculture is the depth of the combination of Internet of Things technology and traditional agriculture. Industry insiders say that the most important thing is sensor technology. Through sensors, it is possible to get rid of the limitations of natural factors such as weather and realize remote scientific monitoring in fields, greenhouses, aquaculture and livestock, effectively reducing manpower consumption. Scientific analysis can also be used to improve the overall agricultural resilience to disasters and risks and increase agricultural productivity. Agricultural sensors allow traditional agricultural production to move towards intelligent, automated and remotely controlled smart agriculture.

CO2 sensors

For high standard requirements of CO2 transmitters, the sensor uses a silicon-based non-scattering infrared sensor with a unique built-in reference; advanced single-beam dual-wavelength measurement, no moving parts, excellent long-term stability. The sensor monitors the co2 concentration in the room in real time and regulates the co2 gas replenishment to ensure the required concentration of carbon dioxide for photosynthesis of indoor plants.