A WiFi gas sensor is a modern device designed to detect the presence of various gases, such as carbon monoxide, methane, or volatile organic compounds (VOCs), and transmit this information wirelessly over a WiFi network. These sensors integrate advanced sensing technologies with IoT (Internet of Things) capabilities, allowing for real-time monitoring and alerts. When a gas leak or dangerous concentration is detected, the sensor sends notifications to connected devices, such as smartphones or computers, enabling prompt action to ensure safety.