This intelligent portable gas detection alarm is a high-end multifunctional gas detector that can be continuously turned on and used for 24 hours after a single charge. It has a built-in air pump (optional) and uses imported sensors for accurate measurement. The instrument is equipped with 2GB data storage and can print detection data on site. It is easy to operate and widely used in various fields such as emergency detection, medical, metallurgical, fire protection, petrochemical, municipal, coating, paint, chemical, etc.