New Product in Stock: More MQ Gas sensors: MQ-3 Alcohol, MQ-7 CO and MQ-135 air quality Alcohol, CO2, NH3, Benzene


Three new gas sensor modules: SNS-MQ3, SNS-MQ7, SNS-MQ135 are add to our sensor section. They have both analog and digital outputs and can sense different gases.

3 Comments (+add yours?)

  1. jonsmirl
    Sep 08, 2014 @ 15:03:32

    Are these the ones that need a lot of power for a heating element inside? Of course ones without heaters cost $$$.


  2. jonsmirl
    Sep 08, 2014 @ 15:04:42

    Air Quality Egg did a lot of research on this.


  3. bmatichuk
    Feb 25, 2015 @ 21:59:46

    What is the maximum temperature of the heating element?


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