This is the firstCO2 sensor in the Arduino market. ط¢آ The output voltage of the module falls as the concentration of the CO2 increases. The potentiometer onboard is designed to set the threshold of voltage. As long as the CO2 concentration is high enough (the voltage is lower than the threshold), ط¢آ a digital signal (ON/OFF) will be released.
- It has MG-811 sensor module which is highly sensitive to CO2 and less sensitive to alcohol and CO, low humidity & temperature dependency.ط¢آ
- Onboard heating circuit brings the best temperature for sensor to function. Internal power boosting to 6V for heating sensor best performance.ط¢آ
- This sensor has an onboard conditioning circuit for amplifying output signal.ط¢آ
To ease the difficulty of using this CO2 sensor, ط¢آ aط¢آ Gravityط¢آ Interface is adapted to allow plug&play. ط¢آ Theط¢آ Arduino IO expansion shieldط¢آ is the best match for this CO2 senor connecting to yourط¢آ Arduinoط¢آ microcontroller.ط¢آ
This is an electrochemical Arduino-based CO2 sensor, it is suitable for qualitative analysis. There are other Infrared CO2 sensors, which could make aط¢آ quantitative analysis.
Gravity: Analog Infrared CO2 Sensor For Arduino (0~5000 ppm), high precision, apply to Arduino and other microcontrollers with ADC function.
|Gravity CO2 Sensor Selection Guide|
|Product Name||Gravityط£آ¯ط¢آ¼ط¥طŒAnalogElectrochemistry CO2 Sensor||Gravityط£آ¯ط¢آ¼ط¥طŒAnalog IR CO2 Sensor||Gravityط£آ¯ط¢آ¼ط¥طŒUART IRCO2 Sensor|
3P Header Digital Output(Alarm):0آ¾VCC Level
(Analog Output 0.4ط£آ¯ط¢آ½ط¥آ¾2V)
Solid electrolyte battery principle¼
|NDIR(non-dispersive infrared)||NDIR(non-dispersive infrared)|
|Measurement Range||0¥آ¾10000 ppm||0¯آ¾5000 ppm||0ط£آ¯ط¢آ½ط¥آ¾50000 ppm|
|Accuracy||¢آ±100ppm@400ppm||±(100ppm + 6% readings)||ط¢آ±(100ppm + 6% readings)|
|Operation Humidity||0آ¾95% RH (No condensation)||0آ½¾95% RH (No condensation)||0ط£آ¯ط¢آ½ط¥آ¾95% RH (No condensation)|
|Lifespan||>1 years||>5 years||>5 years|
|32*42 mm||37*69 mm||21*27.1 mm|
2.Adjustable Alarm Threshold
3.Auto Temperature Compensation
4.Water Vapor Interference Resistance
4.Auto Temperature Compensation
5.Water Vapor Interference Resistance
6.3.3V UART Output