Project Idea
Build an IoT-enabled industrial gas leak detection system that continuously measures hazardous gases, triggers instant local and remote alarms, and logs data to the cloud. The goal is to prevent accidents, minimize downtime, and simplify safety compliance across plants and warehouses.
Project Description
The IoT-Based Industrial Gas Leakage Detection System combines high-sensitivity gas sensors (electrochemical/MQ series), an ESP32 gateway, and cloud connectivity to monitor concentrations of LPG, methane, hydrogen, CO, and VOCs in real time. Threshold logic activates siren/strobe and can cut power/valves via relays, while SMS/app alerts notify staff. A web/mobile dashboard shows live ppm, trends, sensor health, and event history, with calibration reminders and self-test routines. Optional multi-node deployment enables zone mapping and faster leak localization, improving response and maintenance planning.
Components List
ESP32 / Raspberry Pi (gateway)
Gas Sensors: Electrochemical modules / MQ-2, MQ-4, MQ-7, MQ-135
Temperature & Humidity Sensor (SHT31/DHT22) for compensation
Relay Module for valve/ventilation shutoff
Buzzer/Siren & Strobe Light
GSM/Wi-Fi/LoRa module for alerts & telemetry
Cloud Platform (ThingsBoard / AWS IoT / Blynk)
Power Supply with battery backup (UPS)
Weatherproof/ATEX-style enclosure & mounting kit
Features
Multi-gas real-time monitoring with configurable ppm thresholds
Instant local alarm (siren/strobe) + SMS/app/email notifications
Automatic relay actions (blower ON, valve cutoff, mains trip)
Cloud dashboard: live data, trends, event logs, sensor health
Calibration reminders, self-test, and sensor fault detection
Multi-zone deployment with heatmap/zone alerts (optional)
OTA updates and role-based access control
Project Applications
Chemical & petrochemical plants
Gas storage & cylinder yards
Food/beverage & cold storage (ammonia)
Boilers, kitchens, labs, battery rooms
Warehouses and loading bays
Shipping Dimensions
Length: 22 cm
Width: 16 cm
Height: 10 cm
Weight: 780 g
Project Includes:
Project components
Circuit diagram / circuit connections
Source code
Instructions document
Project Types:
- DIY KIT (Do It Yourself KIT) - Along with the components, you will get the source code, circuit diagram/circuit connections, and instructions document to help you build the project easily.
- Ready-Made - We are providing a fully assembled, tested and ready-made project soldered on a PCB with all the other components, code & circuit diagram.
Notes -
All the products are made by LearnElectronics India and not for re-sale.
These project is a prototype project to show/present/explain and work like to real life product. It is not a product, if you need a ready-made product then reach out to us here.

