Frequently bought together:
Description
Features:
| CATEGORY | SPECIFICATIONS |
|---|---|
| Product Type | Carbon Dioxide (CO₂) Gas Sensor Module |
| Model | MG-811 |
| Sensor Type | Metal Oxide / electrochemical CO₂ sensing module |
| Detection Gas | Carbon Dioxide (CO₂) |
| Operating Principle | Measures CO₂ concentration via gas-sensitive electrochemical reaction; output voltage varies with CO₂ level |
| Detection Method | Infrared / chemical gas absorption response (sensor-based CO₂ sensing) |
| Operating Voltage | ~6 V DC (recommended, can use 4×AA battery pack) |
| Heater Requirement | Internal heating required for operation (must warm up before stable readings) |
| Analog Output (AOUT) | 0 – 2 V (default) or 0 – 4 V (varies by module configuration) |
| Analog Behavior | Output voltage decreases as CO₂ concentration increases |
| Digital Output (DOUT) | TTL output (active HIGH when threshold is exceeded) |
| Threshold Adjustment | Built-in potentiometer for digital trigger level setting |
| Indicator LED | Turns ON when threshold is exceeded |
| Sensitivity | High sensitivity to CO₂, low sensitivity to alcohol and CO |
| Stability | Good long-term stability after warm-up |
| Preheating Time | Required (varies; typically several minutes for stable output) |
| Response Time | Moderate (depends on heating stabilization) |
| Physical Features | Compact module with onboard circuit and sensor chamber |
| Key Features | Dual output (analog + digital), adjustable threshold, high sensitivity |
| Output Trend | Inverse relationship: higher CO₂ → lower analog voltage |
| Interface Compatibility | Arduino, Raspberry Pi (requires ADC for analog input on Pi) |
| Key Components | MG-811 sensor element + heater circuit + comparator + amplifier |
| Applications | Greenhouses, air quality monitoring, industrial safety, medical monitoring, controlled environment agriculture, ventilation control |
Package Includes:
1 x MG811 Module, Air Carbon Dioxide/CO2 Sensor.
Connection Diagram with Arduino and LCD Display:
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Package Includes:
1 × High Quality Retail Box
1 × Module Introduction Paper
1 × Tutorial CD
1 × PS2 Game Joystick Module