This pump suction toxic and harmful gas detection and alarm device 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 suction pump and uses original 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 emergency detection, medical, metallurgical, fire protection, petrochemical, municipal, coating, paint, chemical and other fields.