---
product_id: 333963100
title: "9PCS/Lot Gas Detection Sensor Module MQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135 Sensor Module for Arduino"
brand: "umlife"
price: "€ 31.67"
currency: EUR
in_stock: true
url: https://www.desertcart.it/products/333963100-9pcs-lot-gas-detection-sensor-module-mq-2-mq-3
store_origin: IT
region: Italy
---

# Dual analog & TTL outputs Stable 5V DC operation Detects 10-1000ppm gas concentration 9PCS/Lot Gas Detection Sensor Module MQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135 Sensor Module for Arduino

**Brand:** umlife
**Price:** € 31.67
**Availability:** ✅ In Stock

## Summary

> 🚨 Stay ahead of invisible threats with smart gas sensing tech!

## Quick Answers

- **What is this?** 9PCS/Lot Gas Detection Sensor Module MQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135 Sensor Module for Arduino by umlife
- **How much does it cost?** € 31.67 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/333963100-9pcs-lot-gas-detection-sensor-module-mq-2-mq-3)

## Best For

- umlife enthusiasts

## Why This Product

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

## Key Features

- • **Bulk Pack Advantage:** 9 sensor modules in one lot—perfect for prototyping, scaling, or multi-point monitoring.
- • **Compact & Efficient Design:** Small 32x22x30mm modules fit seamlessly into any Arduino project.
- • **Plug-and-Play Compatibility:** Optimized for Arduino with stable 5V power supply for hassle-free integration.
- • **Wide Gas Detection Spectrum:** Monitors ammonia, benzene, smoke, and more—protect your environment effortlessly.
- • **Precision Dual Signal Output:** Analog and TTL outputs for versatile, real-time gas detection.

## Overview

This 9-piece sensor module set includes MQ-2 through MQ-135 sensors, each capable of detecting harmful gases like ammonia, benzene, and smoke within 10-1000ppm concentration. Featuring dual analog and TTL outputs and operating on a stable 5V DC supply, these compact 32x22x30mm modules are designed for seamless Arduino integration, empowering professionals to build advanced environmental monitoring systems with ease.

## Description

9PCS/Lot Gas Detection Sensor Module MQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135 Sensor Module for Arduino

## Features

- The dual signal output (analog output and TTL output)
- The analog output and increased with the increase of concentration, the higher the concentration higher voltage
- Application: For harmful gas family, environment detection device, is suitable for the detection of the ammonia, aromatic compounds, sulfide, benzene vapor, smoke and other harmful gas, gas sensitive element concentration range: 10 to 1000ppm provides reference cases.
- .Size: 32mm X22mm X30mm length * width * height
- Working voltage: DC 5V

## Product Details

- **Brand:** UMLIFE
- **Power Source:** Gas Powered
- **Product Dimensions:** 0.87"D x 1.26"W x 1.18"H
- **Alarm:** Visual
- **Material:** iron
- **Manufacturer:** UMLIFE
- **UPC:** 701715448391

## Images

![9PCS/Lot Gas Detection Sensor Module MQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135 Sensor Module for Arduino - Image 1](https://m.media-amazon.com/images/I/81NYEi0YL3L.jpg)

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---

*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-02*