Feature: 1. APPLICABLE RANGE: The measuring range of the gas detector is 0‑100%LEL, used for combustible gases, such as liquefied petroleum gas, methane, etc. 2. ACCURATE CONTROL: Adopt micro processing control, sound the alarm on site, quickly detect whether the gas is leaking, and ensure life safety. 3. EXCELLENT SENSOR: The gas alarm adopts semiconductor sensor, which has high stability and small sensitivity drift to ensure accurate measurement. 4. HANDHELD DESIGN: The gas leakage alarm is handheld design with standard plug, compact in size, convenient for connection and operation. 5. PLASTIC HOUSING: The gas leakage alarm shell is made of ABS plastic, with good toughness, corrosion resistance and aging resistance. Specification: Item Type: Gas Leakage Alarm Material: ABS Battery: 1 x 9V 6F22 (not included) Plug Voltage: AC90-240V Application: Used in places where combustible gas (such as liquefied petroleum gas, natural gas, biogas, etc.) may leak Measuring Range: 3000PPM (±1500PPM). Package List: 1 x Detector2 x Expansion Screws2 x Screws1 x User Manual