Sensor Output

[Kunal]

Hello friends,

will you please tell me what is the actual output of a MQ-3 (ALCOHOL GAS SENSOR), MQ-7 (CARBON MONOXIDE SENSOR), MQ-131 (OZONE SENSOR), MQ-137 (AMONIA SENSOR). I dont know the output vaolage range of each, if any one knows it then please tell me..

 

[GANEEV SINGH]

Hi Kunal

The output voltage totally depends on the amount of supply voltage you give. I have gone through many links online and have come to know that these modules generally need 5V DC supply and would give you an analog output within this range depending upon their type and function.

Further, you could make use of ADC concept in microcontrollers to get respective values from such sensors.

Good Luck 

[Ashutosh Bhatt]

for such detail always prefer datasheet of sensor – go through detail datasheet

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