MQ-3 Gas sensor Data Sheet

I just have a quick question about the data sheet for the MQ-3 Sensor. I noticed another site - SparkFun sells the same sensor however supplies a different data sheet (Below).

(Datasheet) –

(Product Page) –

The specs on the Sparkfun Data sheet do not correspond with the specs on the Pololu data sheet. Since they appear to be the same product can you confirm that your specs on the Pololu data sheet are correct for this sensor? The project I am currectly working on will be viable with the data indicated on your MQ-3 sensor but not the SparkFun sensor.


Just for your info the Pololu Data sheet is here:

Thanks Again!


I think they are different products. The datasheet we have is the one provided by our supplier.

- Ryan