MQ4 Methane Gas Sensor

Marsoni

M251S

$195.00

Get it in 3 business days with 1 day shipping. Friday, May 29

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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We traveled all over Italy and these worked perfectly everywhere. All the ports were helpful and reduced the number of adapters we needed. We brought a 2-prong style as well, that had larger posts and was supposed to be equally universal but it was definitely not. I would definitely recommend this to anyone and recommend you skip the 2 prong style. The only other consideration is that when you unplug a lamp or something else to use the plug then you may want an additional way to plug the lamp back in and the additional US outlets on the side won’t help, since the lamp will the the same European 3 prong plug. That would definitely be a bulky adapter, but might be worth having one in the group.

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Reviewed in the United States on June 30, 2025

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DWG

Charlottesville, US

★★★★★ 5

Excellent Converter

Color: White/grey-Type L

Works very well for chargers and also works for 120 volt hair dryers.

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Reviewed in the United States on June 5, 2026

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