Equipment is suitable for sleep or Apnea respiratory monitoring,especially Apnea and hypopnea monitoring. Through contrast experiments with psG,it can be used for the diagnosis of clinical sleep apnea syndrome. product is low power consumption,The 3.7v lithium battery can last for more than 20 hours. The equipment has approved international cE, FDA, and other certifications. various types of sensors, which are suitable forinfants and children adults and people of different ages and people of