₹149.00Original price was: ₹149.00.₹105.00Current price is: ₹105.00. GST
MQ-135 gas sensor module designed to detect harmful gases and monitor air quality. Suitable for environmental monitoring, air quality systems, and microcontroller projects.
The MQ-135 Gas Sensor Module is used to detect harmful gases and monitor air quality in the environment. It is sensitive to gases such as ammonia (NH₃), nitrogen oxides (NOx), alcohol, benzene, smoke, and carbon dioxide (CO₂).
This module provides analog and digital outputs, making it easy to interface with development boards like Arduino, ESP8266, and ESP32. It features an onboard comparator and adjustable potentiometer to set the gas detection sensitivity.
The MQ-135 sensor is widely used in air quality monitoring systems, smart home devices, environmental monitoring projects, and educational electronics applications.
Key Features
Detects multiple harmful gases
Suitable for air quality monitoring
Adjustable detection sensitivity
Analog and digital output signals
Onboard LED indicators
Easy interface with microcontrollers
Technical Specifications
Parameter
Value
Sensor Type
MQ-135 Gas Sensor
Operating Voltage
5V
Detectable Gases
NH₃, NOx, Alcohol, Benzene, Smoke, CO₂
Output Type
Analog and Digital
Comparator
LM393
Preheat Time
~20 seconds
Interface Pins
VCC, GND, DO, AO
Pin Configuration
Pin
Description
VCC
Power Supply (5V)
GND
Ground
DO
Digital Output
AO
Analog Output
What’s in the Box
1 × MQ-135 Air Quality Sensor Module
Ideal For
Air quality monitoring systems
Environmental monitoring projects
Smart home automation
Arduino and IoT projects
Educational electronics experiments
Weight
0.006 kg
Dimensions
3.2 × 2.0 × 2.2 cm
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