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. 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. 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. WI-FI/BT Standard:802.11b/g/n, (channel 1-14), support BT 4.2 low energy WIFI Frequency:2.412-2.4835GHz Display:1.4inch 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,Less than 90%RH Alarm Linkage Output:DC5V Please check as much as possible to make sure the item is what you need. Tips:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use. Version:A:Ordinary Version Working Current:170mA Alarm Mode:Sound (Buzzer) / Version:B:WIFI Version Working Current:210mA Alarm Mode:Sound (buzzer) and mobile push Colour:White Material:Plastic Package Contents: 1 * Gas Detector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.