1. Compact size: Portable gas detector, compact ABS body, drop-proof and dust-proof, fast response, quickly detects leaks. 2. High-precision sensors: The use of high-precision sensor, with fast response and very quick reaction, supports more accurate measurement. 3. Extended flexible probe: Split universal flexible probe, retractable and wear-resistant, with a length of about 278 mm, easily adapts to a variety of detection environments. 4. LCD display with backlight: Color LCD display with backlight, with clear definition, the numerical value can be clearly displayed at night. 5. Easy to use: Convenient for users to safely detect and test a variety of combustible gas types, easy to meet different testing needs.