MQ-135 Air Quality & Hazardous Gas Sensor Module | CO2, Smoke, Ammonia
₵35.00
Detect smoke and dangerous gases instantly. The MQ-135 is the most versatile gas sensor for air quality monitoring. It detects a wide range of gases including Ammonia, Sulfide, Benzene, Smoke, and CO2. Perfect for “Smart Home” safety systems and environmental monitoring.
- Gases Detected: NH3, NOx, Alcohol, Benzene, Smoke, CO2.
-
Output: Analog (Gas Concentration) and Digital (Alarm Trigger).
-
Warm-up Time: ~20 seconds.
-
Best For: Air Quality Monitors, Smoke Alarms, and Industrial Safety.
1 in stock
The MQ-135 Air Quality Sensor Module is a high-precision gas sensor designed to detect air pollutants such as ammonia (NH₃), sulfur dioxide (SO₂), benzene, carbon monoxide (CO), smoke, and other volatile organic compounds (VOCs). Ideal for home air quality monitoring, industrial safety, and IoT-based environmental tracking, this sensor helps ensure clean and safe air in your surroundings.
🔹 Dual Output & Adjustable Sensitivity for Easy Integration ⚡
✔ Gas Detection: Ammonia (NH₃), benzene, CO, smoke, alcohol, NOx, and VOCs.
✔ Dual Output: Analog (gas concentration levels) & Digital (threshold-based alerts).
✔ Adjustable Sensitivity: Built-in potentiometer for fine-tuning detection levels.
✔ Operating Voltage: 5V DC (Compatible with Arduino & Raspberry Pi).
✔ Preheat Time: 20 seconds for stable readings.
✔ Long-Lasting & Reliable: Durable sensing element for consistent performance.
🔹 Applications – Where to Use the MQ-135 Sensor 🛠️
✔ Indoor Air Quality Monitoring – Detects pollutants and gases in homes & offices.
✔ Industrial Safety & Gas Leak Detection – Used in factories and chemical plants.
✔ Smart Home & IoT Automation – Integrates with smart ventilation systems.
✔ Vehicle Emission Testing – Measures harmful gas emissions in garages and labs.
✔ Environmental Monitoring Stations – Tracks air pollution levels in urban areas.
🔹 How to Use & External Resources 📚
The MQ-135 sensor connects easily to Arduino, Raspberry Pi, ESP8266, and other microcontrollers. Power it with 5V, connect the analog or digital output, and start measuring air quality.
📖 Helpful Resources for MQ-135 Air Quality Sensor Module:
✔MQ-135 Datasheet & Specifications
✔ How to Interface MQ-135 with Arduino
✔ Raspberry Pi Air Quality Sensor Guide
✔ YouTube Tutorials – MQ-135 Air Quality Monitoring Projects
🔹 Best Price & Availability in Ghana 🇬🇭
Looking for an MQ-135 Air Quality Sensor Module in Ghana? Whether for home pollution monitoring, industrial gas detection, or IoT-based environmental tracking, this sensor offers high accuracy and easy integration. Order today for fast delivery across Ghana!
Related products
20×4 LCD Display Module (Blue Backlight) | 2004A Character Screen
Double the space, double the data. The standard 16x2 LCD is great, but sometimes you need more room. The 20x4 LCD gives you 4 lines of text (20 characters per line), allowing you to display complex menus, sensor readings, and status messages all at once.
-
Size: 20 Characters x 4 Lines.
-
Display: White Text on Blue Background.
-
Controller: HD44780 (Standard Industry Chip).
- Best For: Weather Stations, 3D Printers, and Advanced Menus.
3×4 Matrix Membrane Keypad Module | 12 Button Numeric Pad
A simple and reliable input device for Arduino and DIY electronics projects. This flexible 12-key keypad provides only the essential keys (0–9, *, #)—no letters—making it ideal for numeric-only applications. It comes with a peel-and-stick adhesive backing for quick mounting on enclosures, panels, or doors.
-
Keys: 12 (Telephone-style layout)
-
Interface: 7 pins (2.54 mm standard pitch)
-
Mounting: Self-adhesive sticker backing
- Best for: Electronic door locks, vending machines, access control systems, phone dialers, and keypad-based Arduino projects.
4×4 Matrix Membrane Keypad | 16 Button Keypad Module
The standard keypad for security projects. This ultra-thin 16-button keypad allows users to enter passwords, navigate menus, or control robots. It features a peel-and-stick adhesive backing, making it easy to mount on any plastic project box or door.
-
Keys: 16 (0-9, A-D, *, #)
-
Mounting: Self-Adhesive Backing (Peel & Stick)
-
Interface: 8 Pins (Standard 2.54mm header)
-
Best For: Electronic Door Locks, Calculators, and Attendance Systems.
HC-SR04 Ultrasonic Sensor Module | Distance Measurement for Arduino
Give your robot eyes. The HC-SR04 uses sonar (sound waves) to measure distance, just like a bat. It is the standard sensor for obstacle avoidance robots and water level monitoring systems.
-
Range: 2cm to 400cm (4 Meters)
-
Accuracy: 3mm
-
Pins: VCC, Trig, Echo, GND
-
Best For: Obstacle avoiding cars, reverse parking sensors, and tank level detection.
LDR Photosensitive Sensor Module (4-Pin) | Light Detector
Make your project react to light. This sensor detects the brightness of the environment. Unlike the 3-pin version, this 4-Pin Module gives you both a Digital Output (to trigger a switch) and an Analog Output (to measure exact brightness). Perfect for automatic streetlights and solar trackers.
- Sensor Type: Light Dependent Resistor (Photoresistor).
-
Outputs: Digital (D0) & Analog (A0).
-
Sensitivity: Adjustable via Blue Potentiometer.
- Best For: Automatic Lights, Sun Trackers, and Laser Tripwires.
MQ-2 Smoke & Gas Sensor Module | LPG, Butane, Hydrogen Detector
Build your own Fire & Gas Leak Alarm. The MQ-2 is a dual-purpose safety sensor. It detects Smoke (from fires) and Combustible Gases (like LPG, Propane, and Butane). It is the standard module for building "Smart Kitchen" safety monitors.
- Detects: Smoke, LPG, Propane, Hydrogen, Methane.
- Sensitivity: High (Adjustable).
- Response Time: < 10s.
- Best For: Fire Alarms, Gas Leak Detectors, and Industrial Safety.
MQ-3 Alcohol Sensor Module | Breathalyzer & Ethanol Detector
Build your own Breathalyzer. The MQ-3 is specifically designed to detect alcohol (Ethanol) vapors. It has high sensitivity and fast response time, making it the perfect sensor for "Smart Car" safety systems that prevent drunk driving.
-
Detects: Alcohol, Ethanol, Benzine.
-
Sensitivity: Adjustable via Blue Potentiometer.
-
Warm-up: Heater requires ~20 seconds.
-
Best For: Breathalyzers, Drunk Driving Alarms, and Industrial Monitoring.
Reviews
There are no reviews yet.