Gas Guardian: An IoT-Based Real-Time Leakage Detection and Mitigation System

Authors

  • N. B. Mahesh Kumar
  • Iniyavan S
  • Irudhayasibi Raja
  • Denisto I
  • Cristiano M
  • Ashwinth Meggancy

Keywords:

Gas leakage safety system, IoT-based gas detection, MQ-6 gas sensor, NodeMCU, Real-time monitoring

Abstract

An IoT-based Gas Leakage Detection System is developed to enhance safety by detecting hazardous gas leaks in real time. The system uses an MQ-6 gas sensor to monitor combustible gases such as LPG, propane, and methane with high sensitivity. When the gas concentration exceeds a predefined threshold, the system immediately activates safety mechanisms, including a buzzer alert and an exhaust fan, to reduce gas levels in the environment. The core controller, NodeMCU (ESP8266), enables wireless communication through Wi-Fi, allowing the system to connect with the Blynk mobile application for remote monitoring. It also displays warning messages on an LCD screen, ensuring both local and remote alerts. This dual-alert mechanism helps users take immediate action even when they are not physically present. The system is cost-effective, energy-efficient, and easy to install, making it suitable for residential, commercial, and small-scale industrial applications. By providing continuous monitoring, early detection, and rapid response, it significantly reduces the risk of fire accidents, explosions, and health hazards caused by gas leakage. Overall, the integration of sensor technology with IoT improves safety and helps protect human life and property effectively.

References

R. Rahul and V. M. B., “IoT Based Safety Enabled Smart Gas Detector,” International Journal of Engineering Research & Technology (IJERT), vol. 11, no. 06, pp. 1–6, 2023.

K. B. Dubey, A. Chauhan, A. Shrivastava, and H. Chaudhary, “GasGuard: An IoT-Based Gas Leakage Detection and Alert System,” International Journal of Scientific Research & Engineering Trends, vol. 11, no. 2, pp. 1838–1844, Mar.–Apr. 2025.

M. Tarun Kumar, D. Santhosh, K. Hemanth, and G. Surekha, “LPG Leakage Detection and Prevention System using IoT,” International Journal of Scientific Research in Science, Engineering and Technology, vol. 10, no. 2, pp. 46–51, Mar.–Apr. 2023.

M. Monisha, S. Sarumathi, and R. Pratheeba, “IoT Enabled Gas Leak Detection and Safety Automation System,” International Journal of Advanced Research in Computer and Communication Engineering, vol. 14, no. 5, pp. 157–162, May 2025.

J. Patil, R. Kamule, R. Misale, S. Kutre, and V. Jarali, “IoT based LPG Gas Leakage Detection,” International Journal of Research Publication and Reviews, vol. 6, no. 12, pp. 6528–6532, Dec. 2025.

M. S. Murty, S. R. Dhanikonda, P. Sowjanya, P. J. Kumar, N. S. Chandra, and C. Dastagiraia, “Smart Gas Leakage Detector Using IoT Sensors,” International Journal of Intelligent Systems and Applications in Engineering, vol. 12, no. 4, pp. 2613–2620, 2024.

U. J. Ekah, S. Ozuomba, and E. Ekott, “Evaluating MQ Sensors in Gas Leakage Detection Systems,” Journal of Scientific and Engineering Research, vol. 11, no. 9, pp. 12–16, 2024.

M. Alshammari and T. Chughtai, “IoT Gas Leakage Detector and Warning Generator,” Engineering, Technology & Applied Science Research, vol. 10, no. 4, pp. 6142–6146, Aug. 2020.

V. Muralidharan, S. Prabhavathy, L. Pavithra, and V. Nithya, “IoT Based Smart Monitoring and Controlling System for Gas Leakage in Industries,” SSRG International Journal of Electrical and Electronics Engineering, vol. 9, no. 9, pp. 38–46, 2022.

M. Suganyak, V. Snehak, R. Monisha K., A. K., and S. V., “Sensor-Based Gas Leakage Detector System,” In Proceedings International Conference on Exploring AI, IoT, Science & Technology (ICEAIST-24), 2024.

Published

2026-06-01