MH-711A CO2 gas sensor module to detect carbon Dioxide CO2 in air for industrial field instrumentation
- Model Number:XST-MH-711A
- Type:co2 sensor, Air quality sensor, Gas Sensor
- Place of Origin:Guangdong, China
- Brand Name:Xunster
- Usage:detect carbon Dioxide CO2
- Description:Infrared CO2 Gas Sensor
- Target Gas:CO2
- Working Voltage:4.5 V ~ 5.5V DC
- Average Current:< 100mA
- Interface Level:3.3V
- Measurement Range:0~30%VOL optional
- Warm-up Time:3min
- Working Temp.:-40℃ ~ 70℃
- Working Humidity:0 to 95%RH
- Lifespan:>5 years
- Protected Class:IP65

1. Product Description
MH-711A is a universal type intelligent sensor to detect CO2 in air taking advantages of non-dispersive infrared (NDIR) principle. With high selectivity, no oxygen dependence, high performance and long lifespan features, MH-711A also has built-in temperature compensation feature. MH-711A is a compact and high-performance sensor based on infrared absorption of gas detection technology, micro-machining and sophisticated circuit design.
2. Characteristics
Long lifespan
High Sensitivity and resolution
5V constant power supply, low power consumption
Output method: UART, analog voltage signal, etc.
Quick response & Resume
Temperature compensation, excellent linear output
Anti-poisons, anti-vapor interference
Detect combustible gas concentration matching with flame-proof marked detector in area 1&2 explosive environments which mix of ⅡA, ⅡB, ⅡC and T1-T6 flammable gases, vapors and air
3. Application
Widely used for industrial field instrumentation, industrial-process control and safety protection

| Product Model | MH-711A |
| Target Gas | CO2 |
| Working Voltage | 4.5 V ~ 5.5V DC |
| Average Current | < 100mA |
| Interface Level | 3.3V |
| Measurement Range | 0~30%VOL optional |
| Output Signal | IIC |
| 0.4-2V DC | |
| Warm-up Time | 3min |
| Response Time | T90< 30s |
| Working Temp. | -40℃~70℃ |
| Working Humidity | 0 to 95%RH, Non-condensing |
| Dimension | 44×61mm |
| Weight | 350g |
| Lifespan | >5 years |
| Ex-marking | Ex dⅡC T6 Gb |
| Protected Class | IP65 |


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