Methane Gas Sensor MQ-4

			Pololu item #: 1633 171 in stock Price break Unit price (US$) 1 4.95 10 4.45 Quantity: backorders allowed

This semiconductor gas sensor detects the presence of methane (CNG) gas at concentrations from 300 ppm to 10,000 ppm, a range suitable for detecting gas leaks. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller.

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