Air Quality Monitoring Using NDIR Carbon Dioxide(CO2) Gas Detection Sensor 400-5000PPM
Principle Introduction:
The carbon dioxide gas sensor (hereinafter referred to as the sensor) is a general intelligent small sensor. It uses the principle of non dispersive infrared (NDIR) to detect the CO2 in the air, which has the characteristics of good selectivity, oxygen free dependence and long life; Built in temperature compensation; At the same time, it has serial port output, analog output and PWM output, which is convenient to use. The sensor is a high performance sensor which combines the mature infrared absorption gas detection technology with the design of precise optical circuit and excellent circuit.
Feature:
Provide UART, DAC, PWM waveform output mode
Anti water vapor interference, no poisoning
Excellent stability and long service life
Temperature compensation, excellent linear output
Application:
indoor &outdoor Air quality monitoring equipment, fresh air system, air purification equipment, HVAC
Technical Parameters :
Item | Specification |
Measurement Range | 400~5000ppm(Other range available) |
Operating Principle | (NDIR) |
Power Supply | 4.5~5.5V DC |
Operating Current | 120mA peak, 20mA average |
Accuracy | ±(50ppm+5% of reading) |
Warm Up Time | 3 minutes |
Response Time | T90 < 120 seconds |
Time Between Detection | 2 seconds |
Operating Conditions | 0~50℃/0~90%Rh(No condensation) |
Storage Conditions | - 20~60℃/0~90%Rh(No condensation) UART (TTL interface level 3.3V) |
Communication Interface | PWM Vout (Analog output interface) |
Size | 39 X 20 X 9.2 (mm) |
Weight | Approx.5g |
Using Life | >5 years |