Fangrui Product Details 1. Habotest Combustible Gas Methane Leak Detector 2. Combustible Gas Detection Range: 50~1000ppm 3. Temperature: -20.0 ~ 60.0 Degrees Celsius (-4.0 ~ 140.0 Degrees Fahrenheit) 4. Humidity Detection: 0. ~ 99. Rh 5. Power Supply: 3x1.5v Aaa Alkaline Batteries (batteries Are Not Included In The Product) 6. Different Sensitivities Can Be Selected According To The Measurement Environment, High Sensitivitymedium Sensitivitylow Sensitivity 7. Telescopic Rod Design, Which Can Be Extended To Increase The Measurement Distance Of The Sensor 8. Audio-visual Alarm, The Screen Will Change Color According To The Measured Concentration Value And Emit A Buzzing Alarm Sound 9. Select The Temperature Unit To Switch As Needed 10. When The Meter Displays A Low Battery Voltage Warning, Please The Battery In Time 11. Automatic Shutdown And Startup, If There Is No Operation Or Detection Signal Within 5 Minutes, The Device Will Automatically Shut Down. The Default Setting Is Automatic Shutdown Mode When The Device Is Turned On. Press The Apo Button To Cancel The Automatic Shutdown Mode 12. Adopt High-precision Sensors With High Sensitivity And Fast Response Speed 13. Lcd High-definition Backlight Display Can Clearly Display Values Even In Dim Environments 14. Not Only Can It Detect Combustible Gases, But It Can Also Measure Ambient Temperature And Humidity In Real Time 15. Household Gas Pipeline Inspection, Reduce Hazards, Timely Detect Combustible Gas Leaks, And Reduce The Accident Rate 16. Application Scenarios: Widely Used In Natural Gas Pipeline Leak Detection, Household Gas Safety, Metallurgy, Mining Oil And Gas Exploration, Hazardous Goods Storage Facilities And Other Fields 17. Size: 265x56x27mm (extended); 165x56x27mm (normal) 18. Weight: 120g