Package Included

• 1pcs x MQ-2 Smoke Liquefied Flammable Gas Sensor Module Methane Gas for arduino DIY KIT

MQ-2 gas sensor sensitive material used in clean air low conductivity tin oxide (sno2). When there is a situation in which the sensor for flammable gases, conductivity sensor with increasing concentration of combustible gases in the air increases. Converting the change in the conductivity of the gas concentration with the aid of a simple circuit corresponds to the output signal. Mq-2 gas sensor high on gas, propane, hydrogen sensitivity of the detection of natural gas and other combustible vapors are also very good. This sensor detects a variety of flammable gases, is a low-cost sensor for different applications.

A gas, natural gas, city gas, better smoke sensitivity. Are there four screw holes for easy positioning; Has a long life span and reliable stability Quick response and recovery typical

Input voltage: dc5v power consumption (current): 150ma Do output: digital ttl 0 and 1 (0.1 and 5v) A0 output: 0.1-0. 3 v (relative to pollution), the maximum concentration of a voltage of about 4v Special Note: After the sensor is powered, need to warm up around 20s, measured data was stable, heat sensor is a normal phenomenon, because the internal heating wire, if hot is not normal. Vcc: positive power supply (5v) Gnd: power supply is negative Do: ttl switch signal output Eg: analog signal

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