help regarding air pollution detector

Discussion in 'The Projects Forum' started by deipaksitece, Apr 4, 2014.

  1. deipaksitece

    Thread Starter New Member

    Apr 4, 2014
    i am building an air pollution detector. i am using mq7 for co concentration control. in the datasheet of mq7 sensor it is written that one has to preheat the sensor for nearly 48 hours before stabilization. i didn.t understand, do we really have to preheat the sensor for about 48 hours every time i want to take a reading????please help me if anyone has done something related to it. because i am not getting any output. thanks..........
  2. joeyd999

    AAC Fanatic!

    Jun 6, 2011