3pcs Keyes MQ-135 Pollution Sensor Module
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3 MQ-135 Air Quality Sensor 4 Pin Keyes
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Noted Onboard Components:
Receiver sensitivity potentiometer
NH3,NOx, alcohol, Benzene, smoke,CO2 ,etc
This module is ideally suited to adding pollution sensing to your project. This is a detection module which can detect various gases ( NH3,NOx, alcohol, Benzene, smoke,CO2 ,etc) to trigger a switch like response. This allows you to replace those mechanical switches that have been holding back your project all this time with something a little smellier.
An onboard potentiometer allows you to adjust the trigger volume so that you can tailor sensitivity to account for the projects surrounding background levels.
As a simple module it will suit use within a large range of projects based on microcontrollers such as Arduino boards and the Raspberry Pi. The module has a M2.5 mounting hole allowing for its easy attachment to a multitude of surfaces.
|VCC||2.5 - 5V|