Brian Hakim Pangestu. System Early Warning System for Gas Leakage in Waterheater Using IoT-Based Mq-2 Sensor: Early Warning System for Gas Leakage in Waterheater Using IoT-Based Mq-2 Sensor. JUPITER 2023, 15 (1d), 682-690. https://doi.org/10.5281./6523/15.jupiter.2023.04.