Removable air intake nozzle: Safe, hygienic and easy to carry. Made of PP food-grade material. The nozzle is detachable for cleaning, replacement, or transport, making it practical for repeated use in food environments. Simple operation with clear results: Includes defined operation steps and test results. Beep prompts provide status feedback and completion signals, making it straightforward for users at any skill level. High-precision performance: Adopts a precise gas flow design and an instrument-level circuit design, delivering accurate results in 3 seconds. Use scenarios: - Quick air or gas sampling and safety checks in commercial kitchens or cafeterias. - Rapid quality control or screening in laboratories and R&D environments. - On-site field inspections at manufacturing facilities or during food safety audits requiring portable, fast readings.