Item Type: Combustible Gas Detector_x000D_Mode: HT60_x000D_Material: ABS_x000D_Battery: 1.5V AAA Battery (Without Battery)_x000D_Application: Gas Concentration Detection_x000D_Basic Parameters:_x000D_Sensor: Gas Sensing Semiconductor_x000D_Detection Range: 50 to 1000PPM (Methane)_x000D_Response Sensitivity: >50ppm (Methane)_x000D_Detected Gas:_x000D_Acetone, Acetylene, Alcohol, Ammonia, Benzene, Butane, Ethanol, Ethylene Oxide, Gasoline, Hexane, Hydrogen, Methane, Naphtha, Natural Gas, Propane, Solvents, etc._x000D_Warm Up Time: About 30 Seconds_x000D_Response Time:_x000D_500PPM: About 2 Seconds_x000D_Alarm Mode: Analog Display and Buzzer 1Main Application: This gas detector can be used for fast and reliable detection of flammable gas leaks in gas pipelines, a must have tool for professionals. 2Standard Production: Sensitive performance with a low power consumption, this gas detector has a long service life. 3Double Alarm: When the leakage of combustible gas is detected, the machine will beep and alarm, and the display has a red prompt. Easy for you to monitor. 4ABS Material: Made from premium ABS material, scratch resistance and impact resistance, not likely to deform, has excellent durability for long working hours. 5Easy Operation: Press the power button to switch on and wait for 30 seconds to warm up before use, long press the power button to shut down, the operation is simple and convenient.1 xCombustibleGasDetector 1 x Manual