DFRobot Gravity Analog CO2 Gas Sensor For Arduino (MG-811 Sensor)

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SKU: rz24310126 Category: Gas and Dust Sensor

Description

The greenhouse Effect” is melting the Earth’s ice core every minute and creating dangerous icebergs. By knowing the exact concentration of CO2(Carbon Dioxide), we can do something to reduce the CO2 and to protect our Earth. Here is the Arduino-based CO2 sensor designed by DFRobot’s lovely engineer. This is the first CO2 sensor in the Arduino market. The output voltage of the module falls as the concentration of 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), a digital signal (ON/OFF) will be released.

It has an MG-811 sensor module which is highly sensitive to CO2 and less sensitive to alcohol and CO, low humidity & temperature dependency. The onboard heating circuit brings the best temperature for the sensor to function. Internal power boosting to 6V for heating sensor best performance. This sensor has an onboard conditioning circuit for amplifying the output signal.

Features:

Good sensitivity and selectivity to CO2
Low humidity and temperature dependency
Long stability and reproducibility

Specifications:

Heating Voltage: 6.0±0.1 V
Heating Resistor: 30.0±5%Ω
Heating Current: at 200mA
Heating Power: 1200mW
Operating Temperature: 20-50
Size:32x42mm (1.26×1.65″)

Package Includes:

1 x DFRobot Gravity Analog CO2 Gas Sensor For Arduino (MG-811 Sensor)

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Detection range	0~100%
Working Pressure Range	0.5~2.0Bar
Working Voltage	3.3～5.5V DC
Output Signal	I2C , UART (0~3V) , analog voltage
Lifespan	＞2 years (in air)
Working Humidity Range	0-99% RH (non-condensing)
Working Temperature Range (°C)	-20°C ~ +50°C
Product Dimensions	32mm x 27mm/1.26 x 1.06 inch
Response Time ( μS)	＜5S
Mounting Holes Diameter (mm)	inner diameter 3.1mm(0.12 inch)/outer diameter 6mm(0.24 inch)

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Detection range	0~1000ppm
Working Voltage	3.3～5.5V DC
Working Current	＜5mA
Output Signal	I2C , UART (0~3V) , analog voltage
Working Temperature	-20～50℃
Working Humidity	15～90%RH (non-condensing)
Storage Temperature	-20～50℃
Communication Protocol	I2C , UART and analog
Compatibility	Arduino , ESP32 , Raspberry pi
Storage Humidity	15～90%RH (non-condensing)
Lifespan	>2 years (in the air)
Adapter Plate Size	37 x 32mm

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Detection range	0~10ppm
Working Voltage	3.3～5.5V DC
Working Current	＜5mA
Output Signal	I2C , UART (0~3V) , analog voltage
Compatibility	Arduino , ESP32 , Raspberry pi
Lifespan	>2 years (in the air)
Working Temperature Range (°C)	-20 to 50

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Heater Voltage	5.0±0.2V DC
Circuit Voltage	5.0±0.2V DC
Heater power consumption	280mW (typical)
Heater Current	56±5mA
Sensing Principle	MOS type
Heater Resistance	approx 59Ω at room temp. (typical)
Load Resistance	variable 0.45kΩ min
Sensor Resistance	10kΩ ~ 100kΩ in air
Standard Package	TO-5 metal can
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Heater Current	56±5mA
Heater Resistance	approx 59Ω at room temp.
Heater Voltage	5.0±0.2V DC
Load Resistance	variable 0.45kΩ min
Sensing Principle	MOS type
Circuit Voltage	5.0±0.2V DC
Sensor Resistance	1.0~10.0kΩ in 1800ppm iso-butane
Standard Package	TO-5 metal can
Target Gases	Butane , LP gas
Test Gas Conditions	iso-butane in air at 20±2˚C , 65±5%RH
Heater power consumption	280mW VH = 5.0V DC

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Output current in CO	1.2~3.2nA/ppm
Target Gases	Carbon monoxide
Typical detection range	0 ~ 5 , 000ppm
Baseline offset(*1)	<±10ppm equivalent
Operating temperature	10˚C ~ +50˚C (continuous) -20˚C ~ +60˚C (intermittent)
Operating humidity	10 ~ 95%RH (no condensation)
Response time (T90)	within 60 seconds
Storage conditions	-10˚C ~ +50˚C (continuous) -20˚C ~ +60˚C (intermittent
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