ALL-IN-ONE MACHINE: Gas Detector is equipped with high-performance sensors, ultra-high sensitivity detection of 500 ppm, ultra-fast response speed of 2 seconds, calibration automatic within 30 seconds of starting, 360 ultra-flexible detection, 270mm metal pipe, 10 minutes automatic shutdown function More energy saving and environmental protection. /p> ULTRA CLEAR COLOR DISPLAY: Natural gas leak detector adopts VA reverse display color screen, ultra-clear digital and analog dual display and simple button operation. Double Alarm--If the detected leak value is greater than 25% leL / 12500PPM, the gas detector will beep continuously and the display will also show HIGH. PORTABLE DESIGN: Flammable Gas Leak Detector is small in size and easy to carry, and the double-layer protective cover is very suitable for working. The metal sensor is shielded by a flexible metal pipe to reduce interference, precisely lock the vanishing point, and flexibly adjust the arc, which is suitable for various special scenes. A MULTI-PURPOSE MACHINE: Portable gas detector is suitable for gas pipeline leak detection, household gas prevention, oil and gas mining, tunnel mining operations, chemical industry, to metallurgy, petroleum refining, biochemical medicine and other industries. Gas leaks in narrow areas can also be detected.