MQ7 Carbon Monoxide Gas Sensor Module, 10-1000 ppm CO
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Description
The MQ7 Carbon Monoxide Gas Sensor Module detects CO gas concentrations in the air from 10 to 1000 ppm. Featuring both analogue and digital outputs alongside on-board LED indicators, it connects easily to Arduino and other microcontroller boards. It is well suited for learners, makers, and hobbyists building environmental monitoring and safety alert projects.
Dual signal outputs
The module provides both an analogue output (0.1 to 0.3V) for measuring gas density and a digital TTL output (0.1 to 5V) for threshold switching. Built-in LED indicators display both power status and TTL signal output activity.
Stable and sensitive detection
Designed with a high-quality double panel construction, this sensor offers enhanced sensitivity to carbon monoxide, reliable stability, and a long service life.
Typical applications
Mainly used for carbon monoxide collection and gas detection in homes, factories, and underground operations.
Specifications
| Device | Gas Sensor Module |
| Input Voltage | DC 5V |
| Power Dissipation | 150mA |
| DO Output | 0.1-5V |
| AO Output | 0.1-0.3V |
| Detectable Concentration | 10-1000ppmCO |
| Detection Zone | 10 to 1000ppmm |
| Characteristic Gas | 100ppmm co |
| Sensitive Resistance | 2KΩ to 20KΩ in 100PPM CO |
| Module Size | 32(L) × 20(W) × 22(H) |
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