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MQ7 Carbon Monoxide (CO) Sensor
MQ7 Carbon Monoxide (CO) Sensor
MQ7 Carbon Monoxide (CO) Sensor
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MQ7 Carbon Monoxide (CO) Sensor

Marsoni M251S
Sale price$109.00
Pay 4 payments of $27.25 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
MQ7 Carbon Monoxide (CO) SensorMQ 7 Carbon monoxide gas sensor module detects the concentrations of CO in the air then outputs its reading as an analog voltage. It can measure concentrations of 10 to 10,000 ppm. Additionally, it can operate at temperatures from 10 to 50C and consumes less than 150 mA at 5V. It also uses SnO2 material, whose conductivity is lower in clean air. Its conductivity increases as the concentration of CO gases increases. Features: High quality double panel
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  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 1599 reviews
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Product Reviews
K
Verified Purchase
K. Nguyen
Phoenix, US
★★★★★ 5
Very useful tools or helmets hanger.
These are quite useful and hold anything that’s less than 10lb. I think it can hold heavier items but I think it’s best to keep it light and the magnet strong enough to make it very convenient to affix it to any metal cabinet or poles.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 7, 2025
J
Verified Purchase
Julie Fleming
Battle Creek, US
★★★★★ 1
Magnet strength is weak AF
Item Package Quantity: 30, Color: Black
Magnet strength is absolutely terrible! I was hoping that they would be strong against my shipping container as the product suggests, but I put a item on it that barely weighs 10 lb and it started sliding down the wall. The magnets are not strong at all!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
B
Verified Purchase
BGT 20000
Lowell, US
★★★★★ 5
Great Hooks!
Item Package Quantity: 10, Color: Red
Strong Magnets! Work Great! Well Built!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 7, 2025
T
Verified Purchase
Tony T
Louisville, US
★★★★★ 3
Decent, but....
Item Package Quantity: 6, Color: Green
These magnets were decent, but not as strong as I hoped. They are good enough to hold a shovel or helmet, but anything over 10+ pounds did not work.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 16, 2025
D
Verified Purchase
Don Elkins
Birmingham, US
★★★★★ 4
Good to average purchase but they work.
Item Package Quantity: 10, Color: Green
Magnetic hooks are well made, the hooks have plenty of strength. The magnets on the hooks aren’t quite as stout as they should be, but all in all they were a good buy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 26, 2025

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