MQ-7 Carbon Monoxide Sensor Module Gas Sensor Detection Alarm Module

Technical parameters

1. Heating voltage: 5 ± 0.2V (AC · DC)

2. Working current: 140mA

3. Circuit voltage: 10V (maximum DC 15V)

4. Load resistance: 10K (adjustable)

5. Detection concentration range: 10-1000ppm

6. Voltage in clean air: ≤ 1.5V

7. Sensitivity: ≥ three

8. Response time: ≤ 1S (preheating for 3-5 minutes)

9. Response time: ≤ 30S

10. Component power consumption: ≤ 0.7W

11. Working temperature: -10~50 ℃ (nominal temperature 20 ℃)

12. Working humidity: 95% RH (nominal humidity 65% RH)

13. Service life: 5 years

14. Size: 35mm × 22mm × 18mm

15. Weight and size: 6g

Product features

1. Equipped with signal output indicator lights;

2. Dual signal output (analog output and high/low level signal output);

3. The effective signal output of high and low level signals is low level, which can be directly connected to a microcontroller;

4. Analog output voltage of 0-5V, the higher the concentration, the higher the voltage;

5. Has high sensitivity and good selectivity towards carbon monoxide gas;

6. Has a long service life and reliable stability;

7. Fast response and recovery characteristics;

Product Application

Mainly used for carbon monoxide gas collection and detection in homes, factories, and underground work rooms;

Provide reference routines, circuit diagrams, and detailed user manuals.

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