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In addition, this Gravity: Infrared CO2 Sensor For Arduino (400~5000 ppm) is a high-performance sensor that combines technology of mature infrared absorption gas detection with precision optical circuit design as well as sophisticated circuit design. It has characteristics such as high sensitivity, high resolution, low power consumption, fast response, anti-water vapor interference, no poisoning, high stability, and long life.
This Gravity: Infrared CO2 Sensor is able to directly compatible with the DFRobot Arduino IO expansion board thanks to its external DFRobot Gravity interface. This character simplify the use of the sensor as it is plug and play and no need additional wiring.
This CO2 Sensor could be widely used in HVAC, indoor air quality monitoring, industrial process, and security protection monitoring, agriculture, and animal husbandry production process monitoring.
In addition, we also have a 0~50000 ppm wide-range infrared sensor with Gravity UART interface, Compatible with Arduino, Raspberry Pi, and other microcontrollers: Gravity: UART Infrared CO2 Sensor (0~50000ppm).
Infrared CO2 Sensor For Arduino Tutorial:
ESP32 Arduino: Using an infrared CO2 sensor
ESP32 Arduino: Temperature, humidity and CO2 concentration web server
| Gravity CO2 Sensor Selection Guide | ||||
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| Product Name | Gravity: Analog Electrochemistry CO2 Sensor | Gravity: Analog IR CO2 Sensor | Gravity: UART IR CO2 Sensor | Gravity: I2C SCD41 Infrared CO2 Sensor (400 - 5000 ppm) |
| SKU | SEN0159 | SEN0219 | SEN0220 | SEN0536 |
| Operation Voltage | 3.7～5V | 4.5～5.5V | 4.5～5.5V | 3.3V-5V |
| Output |
Gravity: Analog
(Analog2.7～4.1V)
+
3P Header Digital Output(Alarm):0～VCC Level
|
Gravity: Analog
(Analog Output 0.4～2V)
|
Gravity: UART
(0～3.3V Level)
|
Gravity: I2C |
| Measurement Principle |
Electrochemistry
（Solid electrolyte battery principle）
|
NDIR(non-dispersive infrared) | NDIR(non-dispersive infrared) | photoacoustic NDIR |
| Measurement Range | 0～10000 ppm | 400～5000 ppm | 0～50000 ppm | 400～5000ppm |
| Accuracy | ±100ppm@400ppm | ±(100ppm + 6% readings) | ±(100ppm + 6% readings) | ±(40 ppm + 5% MV) |
|
Response Time |
<20s | <90s | <30s | 60S |
|
Average Power |
<1W | <430mW@5V | <430mW@5V | <30mW@5V |
| Operation Temperature | -20℃～50℃ | 0℃～50℃ | 0℃～50℃ | -10℃～60℃ |
| Operation Humidity | 0～95% RH (No condensation) | 0～95% RH (No condensation) | 0～95% RH (No condensation) | 0～95% RH (No condensation) |
| Lifespan | >1 year | >5 years | >5 years | >10 years |
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Dimension
(PCB)
|
32*42 mm | 37*69 mm | 21*27.1 mm | 32*27*8mm |
| Features |
1. Large Range
2. Adjustable Alarm Threshold
3. Fast Response
4. Analog Output
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1. High Accuracy
2. Long Lifespan
3. Auto Temperature Compensation
4. Water Vapor Interference Resistance
5. Ananglog Output
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1. High Accuracy
2. Large Range
3. Long Lifespan
4. Auto Temperature Compensation
5. Water Vapor Interference Resistance
6.3.3V UART Output
|
1.CO2, temperature, and humidity, three in one
2. Small size of 32*27*8mm
3. Low power, average current＜4mA
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Project 1: Making An Indoor Air Quality Monitor With A DFRobot CO2 Sensor
Introduction: This video is going to be making an indoor air quality monitor using a DFRobot CO2 Sensor and a BME280 Environment Sensor. Together these sensors will provide, CO2 concentration, temperature, air pressure and humidity readings, which will be locally available on an OLED display and will be accessible over the internet through a Grafana dashboard.
Project 2: How to Interface Gravity Infrared CO2 Sensor with Arduino to Measure Carbon Dioxide in PPM
Introduction: This tutorial is going to interface the Gravity Infrared CO2 Sensor with Arduino to measure the CO2 concentration in PPM.
