Features 1、Perfect to help you detect combustible gas/natural gas to find gas leaks indoors or outdoors, safe and reliable. 2、Built-in 360 degree detector ports, high accuracy and high sensitivity. 3、The LCD screen with blue color backlight indicates the concentration value clearly. 4、With three color indicator lights(green/yellow/red), different color light for different level alarm. 5、Lightweight and portable, easy to carry. Widely used for home, restaurant, hospital, hotel, gas station, factory, etc. 6、Powered by 2 * AA batterys(not included). 7、One-key operation, easy to use. Specification This detector is perfect to help you detect combustible gas/natural gas to find gas leaks indoors or outdoors, safe and reliable. Powered by 2 * AA batterys(not included), easy to operate and use. Features: Perfect to help you detect combustible gas/natural gas to find gas leaks indoors or outdoors, safe and reliable. Built-in 360 degree detector ports, high accuracy and high sensitivity. The LCD screen with blue color backlight indicates the concentration value clearly. With three color indicator lights(green/yellow/red), different color light for different level alarm. Lightweight and portable, easy to carry. Widely used for home, restaurant, hospital, hotel, gas station, factory, etc. Powered by 2 * AA batterys(not included). One-key operation, easy to use. Tips: Widely suitable for detecting the concentration of flammable gas like natural gas, liquefied gas, coal gas, methane, propane, butane, etc. (Note: The concentration of butane needs to reach a certain degree that the detector can detect its concentration.) Specifications: Color: White Display: LCD Screen with Backlight Detecting Range: 0-9999ppm Resolution: 100ppm Sensor: Catalytic Method Gas Senor Detecting Temperature: -10℃~45℃ Storage Temperature: -20℃~50℃ Working Voltage: 2.4~3.2V Powered by: 2 * AA Batterys (Not Included) Item Size: 190 * 24.5mm / 7.48 * 0.96in Package Size: 225 * 85 * 40mm / 8.86 * 3.35 * 1.57in Package Weight: 200g / 7.05ounce Package List: 1 * Detector Package List 1 * Detector