


MQ4 Methane Gas SensorMQ 4 gas sensor sensitive material used in clean air conductivity is lower in tin titanium dioxide (SnO2). If the sensor is present in the environment in which the flammable gas, the sensor's conductivity increases with the concentration of flammable gases in the air increases. With a simple circuit, the change in conductivity of the gas concentration can be converted with the corresponding output signal. MQ 4 methane gas sensor for high sensitivity,
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★★★★★ 1
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Size: 23.6 Inch, Color: White
The shelf is very flimsy and not sturdy at all. It feels unstable and poorly made. Definitely not worth the money, I wouldn’t recommend wasting your time or money on this product.
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Reviewed in the United States on February 22, 2026
★★★★★ 5
A Spa-tacular Addition to My Bathroom Oasis!
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Perfect Statement Piece for My Spa-Like Bathroom!
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Reviewed in the United States on July 22, 2025
★★★★★ 5
Great deal for the money, look sharp, and very sturdy
Size: 32in-Shelves, Size: 32in-Shelves
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