Fangrui Product Details 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-lel Carbon Monoxide Range:0-1000ppm Working Environment:-9-55less Than Rh Alarm Linkage Output:dc5v Please Check As Much As Possible To Make Sure The