Mq 7 Gas Sensor Wikipedia

I also have 2 of these set up as analog sensors on my enviro phat connected pizero.

Mq 7 gas sensor wikipedia.

4 1 please contact us by email skype wechat for technology support our response may be delay you can just leave your questions we will reply to you as soon as possible in working time. The mq 7 is a carbon monoxide co sensor suitable for sensing co concentrations in the air. Mq 7 semiconductor sensor for carbon monoxide sensitive material of mq 7 gas sensor is sno 2 which with lower conductivity in clean air. The mq 7 can detect co gas concentrations anywhere from 20 to 2000ppm.

High sensitivity to ch4 natural gas small sensitivity to alcohol smoke fast response stable and long life simple drive circuit specification. Here s the list taken from arduino cc website. You can get this sensor for several. It make detection by method of cycle high and low temperature and detect co when low temperature heated by 1 5v.

4 1 please contact us by email skype wechat for technology support our response may be delay you can just leave your questions we will reply to you as soon as possible in working time. Mq 7 gas sensor apr 14 2011 09 40 am last edit. 1 configuration a or b sensor composed by micro al 2 o 3 ceramic tube tin dioxide sno 2 sensitive layer measuring electrode and heater are fixed into a crust made by plastic and stainless steel net. It can detect co gas concentrations anywhere from 20 to 2000ppm.

Apr 14 2011 12 42 pm by virginia reason. Mq gas sensor type has many derived type for every certain gas. 1 hi all i have been reading a lot about this sensor in internet and in the forum but in fact i still cannot make it work properly. The mq7 is a simple to use carbon monoxide co sensor suitable for sensing co concentrations in the air.

The sensitivity can be adjusted by the potentiometer. Mq gas sensor type is the most popular gas sensor for hobbyist easy to get and of course very cheap. This is a simple to use carbon monoxide co sensor suitable for sensing co concentrations in the air. Mq 7 gas sensor more.

The sensor s conductivity is more higher along with the gas concentration rising. Structure and configuration of mq 7 gas sensor is shown as fig. Like mine for example.