MQ7 CO Carbon Monoxide Coal Gas Sensor Module In Pakistan

Specifications and Features:

1. Operating voltage: DC 5 V.
2. IC driver: LM 393.
3. Size : 11 x 33 x 20 mm.
4. Range: 10 to 1000 ppm.
5. Characteristic gas: 100 ppm CO.
6. Sensitive resistance: 2 to 20 10kohm 10kohm at 100ppm CO.
7. Sensitivity : ≥ 3%.
8. Return time: ≤ 30 s.
9. Heating resistance: ± 31ohm 3ohm.
10. Heating current: ≤ 180 mA.
11. Reaction time: ≤ 1 s.
12. Heating voltage : 5.0V ± 2V / 1.5 ± 1V.
13. Heating power: approx. 350 mW.
14. Ambient temperature : -20 ° C to + 50 ° C.
15. Humidity: ≤ 95% RH.
16. Oxygen content: 21%.
17. The analog output voltage, the higher the concentration the higher the voltage.
18. The carbon monoxide detection with better sensitivity.
19. There are four screw holes for easy positioning;
20. Product Dimensions: 32 x 20 x 22 mm (LxWxH)
21. With a long service life and reliable stability
22. Rapid response and recovery characteristics
    

Standard test conditions :

• Temperature: 20 degrees ± 2 degree
• Humidity: 65% ± 5% RH
• Standard test circuit: Vc: 5.0V ± 0.1V; Vh(high):5.0V±0.1V
• Vh(low):1.5V±0.1V
  

Electrical properties:

• Input voltage: DC5V power (current): 150mA
• DO output: TTL digital 0 and 1 (0.1 and 5V)
• AO output:0.1-0 .3 V (relatively clean), the highest concentration of voltage around 4V
  

Package Includes :

• 1 x MQ-7 CO Carbon Monoxide Coal Gas Sensor Module For Arduino In Pakistan