Easy operation: If you do not like the alarm sound, you can turn it off by pressing the power button twice quickly. Builtin auto calibration: Builtin auto calibration algorithm to enhance sensibility and save. Advanced alarming: Exceeding alarming with auto detection and auto measuring. Integrated detection: NH3, Temperature, and Humidity. Performance and practicality: The device provides integrated detection for ammonia, temperature, and humidity with automatic detection and measurement to support reliable monitoring. Use scenarios Industrial environments: Monitor NH3 levels along with ambient temperature and humidity in chemical plants or refrigeration facilities to support safety protocols and compliance. Laboratories and research settings: Continuous environmental monitoring for experiments and processes involving ammonia and precise climate conditions. Storage and warehousing: Track temperature and humidity to protect sensitive materials and maintain product quality, with automatic alerts for threshold exceedances.