Features: It can detect methane (natural gas), petroleum liquid and carbon monoxide data. Monitor whether there is leakage or exceeding the standard in the current environment. Once a leak is detected, it will have alarm voice alerts and mobile APP information alerts (WIFI version). The WIFI version can remotely monitor data, you can achieve intelligent monitoring by simply connect the product to the network. Simple and intuitive interface with 1.4 inch TFT full-color LCD display. beautiful appearance and the body is designed as a three-dimensional square, comfortable to grip. Suitable for kitchen, bathroom, gas room, gas pipeline, and other indoor or outdoor environments. Specifications: Version: Ordinary Version / WIFI Version (Optional) Working Current: Ordinary version: 170mA WIFI version: 210mA Alarm Mode: Ordinary version: Sound (Buzzer) WIFI version: Sound (buzzer) and mobile push Material: ABS Display: 1.4" TFT LCD Power Supply: USB type-C 5V/1A Methane(natural gas) Range: 0-100%LEL Carbon Monoxide Range: 0-1000PPM Working Environment: -9~55,