Quality parts for your next big project
MQ135 Gas Sensor | Air Quality & Harmful Gas Detection Module The MQ135 Gas Sensor is a high-performance air quality sensor module designed to detect harmful gases and pollutants in the environment. It is widely used in air pollution monitoring, IoT applications, smart home systems, and industrial safety projects. With high sensitivity and fast response time, the MQ135 gas sensor delivers accurate and reliable readings for continuous monitoring. This MQ135 air quality sensor can detect gases such as carbon dioxide (CO₂), ammonia (NH₃), nitrogen oxides (NOx), benzene, alcohol, and smoke, making it ideal for environmental monitoring and gas leakage detection systems. The sensor features an analog output, allowing easy integration with Arduino, ESP32, ESP8266, Raspberry Pi, and other microcontrollers. Key Features Detects CO₂, NH₃, NOx, benzene, alcohol, and smoke High-sensitivity air quality gas sensor Fast response and stable performance Long operational lifespan Analog output for precise gas measurement Easy to interface with Arduino and IoT boards Applications Air quality monitoring systems IoT and smart home projects Industrial and commercial gas detection Environmental pollution monitoring DIY electronics and academic projects Technical Specifications Model: MQ135 Gas Sensor Sensor Type: Semiconductor air quality sensor Operating Voltage: 5V DC Output Signal: Analog Target Gases: CO₂, NH₃, NOx, benzene, alcohol, smoke Operating Temperature: -10°C to 50°C Package Contents 1 × MQ135 Air Quality Gas Sensor Module
In stock: 5
Complete Arduino starter kit with Uno R3, sensors, LEDs, breadboard, and comprehensive tutorial book. Everything you need to start learning electronics.
In stock: 24
Non-contact distance measurement 2cm-400cm with accuracy up to 3mm. Ideal for obstacle detection, liquid level monitoring, robotics.
In stock: 90
Passive infrared motion detector with adjustable sensitivity and delay. Detection range up to 7m. Perfect for security and automation.
In stock: 69
Character LCD with I2C interface adapter. Blue backlight, only 4 pins needed. Perfect for displaying sensor data and project status.
In stock: 6
I2C OLED display with sharp contrast and wide viewing angle. Low power consumption. Ideal for wearables and battery-powered projects.
In stock: 50
6-axis motion tracking sensor. 3-axis gyroscope + 3-axis accelerometer. Perfect for drones, self-balancing robots, gesture control.
In stock: 44
Electrolytic and ceramic capacitors. Values from 1µF to 1000µF. Essential for power supply filtering and timing circuits.
In stock: 55
5V stepper motor with driver board. 4096 steps per revolution. Perfect for precise positioning in CNC, 3D printers, robotic arms.
In stock: 32
Yellow gear motor with plastic wheels. 200 RPM at 6V. Perfect for building robots, cars, and mobile platforms. Wheels included.
In stock: 70
Regulated 5V 2A DC adapter with micro USB cable. Short circuit and overload protection. Perfect for Raspberry Pi and Arduino projects.
In stock: 75
Dual output 3.3V and 5V for breadboard. USB or 9V battery powered. Includes power switch. Maximum current: 700mA per rail.
In stock: 90
Optocoupler isolated relay module. Control high voltage AC/DC devices. LED indicators. Supports Arduino, Raspberry Pi, ESP8266.
In stock: 24
Quad-band GSM/GPRS module. Send SMS, make calls, internet connectivity. Perfect for remote monitoring and IoT applications.
In stock: 35
Powerful single-board computer kit for IoT and automation projects. Includes 4GB RAM, power supply, and SD card.
In stock: 8
Compact Arduino board with ATmega328P. Perfect for small projects and embedded applications.
In stock: 44
4-channel relay module for Arduino. Control high voltage devices safely with microcontrollers.
In stock: 30
Infrared obstacle detection sensor. Adjustable distance, perfect for line following robots.
In stock: 70
Passive infrared motion detector. Automatic triggering for security and automation systems.
In stock: 40
Character LCD display with I2C adapter. Easy to use and perfect for displaying data in your projects.
In stock: 35
Assorted jumper wires pack (male-male, male-female, female-female). 120 pieces for prototyping.
In stock: 100
Solderless breadboard for circuit prototyping. 830 tie points with power rails.
In stock: 59
Adjustable step-down voltage regulator. Input 4-40V, output 1.25-37V, 3A max.
In stock: 50
Serial Bluetooth module for wireless communication. Easy pairing with smartphones and computers.
In stock: 40
The Arduino Uno R3 is a microcontroller board based on the ATmega328P. Perfect for beginners and professionals.
In stock: 47
Digital temperature and humidity sensor. High accuracy and reliable performance for weather stations and monitoring.
In stock: 80
Micro servo motor for robotics and automation projects. 180-degree rotation with precise control.
In stock: 120
Dual H-bridge motor driver for DC motors and stepper motors. High current capability up to 2A per channel.
In stock: 45
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