---
product_id: 64712853
title: "MQ-135 Air Quality Gas Smoke Detection Sensor Module compatible with Arduino and Raspberry Pi including E-Book!"
brand: "azdelivery"
price: "HK$122"
currency: HKD
in_stock: true
reviews_count: 12
category: "Az Delivery"
url: https://www.desertcart.hk/products/64712853-mq-135-air-quality-gas-smoke-detection-sensor-module-compatible
store_origin: HK
region: Hong Kong
---

# Fast response ≤ 1s, power-on ready ≤ 30s Compact 30x20mm size, easy integration Detects NH3, NOx, CO2 & more (10~1000ppm) MQ-135 Air Quality Gas Smoke Detection Sensor Module compatible with Arduino and Raspberry Pi including E-Book!

**Brand:** azdelivery
**Price:** HK$122
**Availability:** ✅ In Stock

## Summary

> 🌿 Breathe smarter, build faster — your air quality ally awaits!

## Quick Answers

- **What is this?** MQ-135 Air Quality Gas Smoke Detection Sensor Module compatible with Arduino and Raspberry Pi including E-Book! by azdelivery
- **How much does it cost?** HK$122 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/64712853-mq-135-air-quality-gas-smoke-detection-sensor-module-compatible)

## Best For

- azdelivery enthusiasts

## Why This Product

- Trusted azdelivery brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Bonus E-Book Included:** Get started instantly with a comprehensive guide featuring installation tips, code libraries, and project ideas—no guesswork needed.
- • **Lightning-Fast Response:** Responds in under 1 second and powers up in just 30 seconds—perfect for real-time air quality monitoring.
- • **Compact & Power-Efficient:** Small 30x20mm footprint with low heating current (≤180mA) and energy output (~350mW) ideal for sleek, sustainable designs.
- • **Plug & Play Compatibility:** Seamlessly integrates with Arduino and Raspberry Pi (AD converter needed for Pi) for effortless smart project setups.
- • **Multi-Gas Precision Detection:** Accurately senses harmful gases like NH3, NOx, Benzene, CO2, and smoke with ≥3% accuracy for healthier environments.

## Overview

The AZDelivery MQ-135 sensor module is a compact, high-precision air quality detector compatible with Arduino and Raspberry Pi. It detects multiple gases including NH3, NOx, CO2, and smoke with fast response times and low power consumption. Designed for easy integration, it comes with a detailed E-Book to accelerate your project development and ensure reliable environmental monitoring.

## Description

AZDelivery MQ-135 Air Quality Gas Smoke Detection Sensor Module compatible with Arduino and Raspberry Pi including E-Book! : desertcart.co.uk: DIY & Tools

Review: Grrreat! - These work weii and within spec.
Review: Plug and play - Only used the analogue output but output to arduino and read the value. Simple 5v supply but seem to work ok on 3.3v too Calibration is still a work in progress

## Features

- ✅ AZ-Delivery MQ135 Air Quality Gas Smoke Detection Sensor Modules for Raspberry Pi are used in air quality control equipment for buildings/offices, and are suitable for detecting NH3, NOx, alcohol, Benzene, smoke, CO2 ,etc.
- ✅ Resolution: 10~1000ppm // Sensitive resistance: 2KΩ to 20KΩ in 100ppm CO // Accuracy: ≥ 3% // Response time: ≤ 1s // Response time after power on: ≤ 30s // Heating current: ≤ 180mA // Heating voltage: 5.0V±0.2V / 1.5±0.1V // Input voltage: 5V // Heating energy output approx.: 350mW.
- ✅ MQ135 Air Quality Gas Smoke Detection Sensor Module sensor is ready for connection to a microcontroller. For use with a Raspberry Pi, an AD converter is required.
- ✅ Dimensions MQ135 Air Quality Gas Smoke Detection Sensor Module are approximately: 30 mm (length) x 20 mm (width).
- ✅ This product includes an E-Book that provides useful information on how to begin your project, it helps with a quick setup and saves time on the configuration process. We provide an array of application examples, full installation guides and libraries.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | AZDelivery |
| Part number | 1x MQ-135 Capteur |
| Item Weight | 30 g |
| Package Dimensions | 10.1 x 6 x 2.1 cm; 30 g |
| Manufacturer reference | 1x MQ-135 Capteur |
| Size | 1x Gas Sensor |
| Colour | Blue |
| Style | Compact |
| Power source type | Battery Powered |
| Item Package Quantity | 1 |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** AZDelivery
- **Style:** Compact
- **Power source:** Battery Powered
- **Colour:** Blue
- **Alarm:** Visual
- **Number of items:** 1
- **Manufacturer:** AZDelivery

## Images

![MQ-135 Air Quality Gas Smoke Detection Sensor Module compatible with Arduino and Raspberry Pi including E-Book! - Image 1](https://m.media-amazon.com/images/I/81wbh1mXmmL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Grrreat!
*by P***B on 24 November 2025*

These work weii and within spec.

### ⭐⭐⭐⭐⭐ Plug and play
*by C***E on 30 September 2023*

Only used the analogue output but output to arduino and read the value. Simple 5v supply but seem to work ok on 3.3v too Calibration is still a work in progress

### ⭐⭐⭐⭐ Works just fine, soldering might do better
*by S***Y on 29 January 2025*

The soldering was a tad bit loose & needed constant adjusting to get any output from the sensor itself. But worked fine after a bit of fiddling around

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.hk/products/64712853-mq-135-air-quality-gas-smoke-detection-sensor-module-compatible](https://www.desertcart.hk/products/64712853-mq-135-air-quality-gas-smoke-detection-sensor-module-compatible)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-25*