# \[I want a node\] Sensor MQ-2 and XOD

**URL:** <https://forum.xod.io/t/i-want-a-node-sensor-mq-2-and-xod/2895>\
**Category:** Hardware Interfacing Questions\
**Created:** [November 23, 2019, 6:24pm UTC](https://forum.xod.io/t/i-want-a-node-sensor-mq-2-and-xod/2895 "2019-11-23T18:24:59Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![polegoshko1](https://avatars.discourse-cdn.com/v4/letter/p/c77e96/32.png) [@polegoshko1](https://forum.xod.io/u/polegoshko1)\
**Post date:** [November 23, 2019, 6:24pm UTC](https://forum.xod.io/t/i-want-a-node-sensor-mq-2-and-xod/2895/1 "2019-11-23T18:24:59Z")

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I want to make a mini fire alarm. I have a smoke and gas sensor “MQ-2”. How to use XOD if there is no node on the sensor?

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**Author:** ![wayland](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.xod.io/wayland/32/1590_2.png) [@wayland](https://forum.xod.io/u/wayland)\
**Post date:** [November 23, 2019, 6:44pm UTC](https://forum.xod.io/t/i-want-a-node-sensor-mq-2-and-xod/2895/2 "2019-11-23T18:44:40Z")

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Take a look at:

> [@Putting in a Request for a Gas sensor (mq-135)](https://forum.xod.io/t/putting-in-a-request-for-a-gas-sensor-mq-135/2275/4):
>
> I breathe on the sensor. [ztKwH94LBG]

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**Author:** ![system](https://canada1.discourse-cdn.com/flex027/uploads/xod/original/1X/eb7348baa04192c2ef932d1db54d44f09f8a7888.png) [@system](https://forum.xod.io/u/system)\
**Post date:** [November 25, 2019, 6:44pm UTC](https://forum.xod.io/t/i-want-a-node-sensor-mq-2-and-xod/2895/3 "2019-11-25T18:44:42Z")

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Closed on November 25, 2019, 6:44pm UTC

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